Medical Records and Evidence: How Foreign Patients Can Prove Malpractice in Turkey

A patient may strongly believe that something went wrong during medical treatment.

That belief, however understandable, is not by itself enough to prove a medical malpractice claim.

Medical negligence cases are evidence-driven.

The court must usually understand:

what the patient’s medical condition was before treatment,

what the doctor or hospital was expected to do,

what was actually done,

whether the treatment complied with accepted medical standards,

whether the patient was properly informed,

what injury occurred,

and

whether the alleged error actually caused that injury.

For a foreign patient, proving these issues can initially appear difficult.

The patient may already have returned to the United Kingdom, Germany, France, the Netherlands, Belgium, Ireland, the United States, Canada or another country.

The hospital may hold most of the original medical documentation.

The treatment records may be in Turkish.

The patient’s corrective treatment may now be taking place abroad.

Communications with the clinic may exist almost entirely on WhatsApp.

The hospital may argue that the negative outcome was a recognised complication.

There may even be missing medical records.

None of these circumstances necessarily makes a malpractice claim impossible.

Turkish procedural law recognises a broad range of documentary and technical evidence. Under Article 199 of the Turkish Code of Civil Procedure, written and printed texts, photographs, films, images, audio recordings, electronic data and similar information carriers capable of proving disputed facts are considered documents for procedural purposes.

This means that a medical malpractice case does not depend on a single “malpractice certificate.”

Instead, the case is usually built from several categories of evidence that support one another.

The strongest medical malpractice claims often combine:

• complete medical records;
• operative reports;
• consent documents;
• radiological images;
• laboratory findings;
• photographs;
• electronic communications;
• independent medical opinions;
• court-appointed expert analysis;
• documentation of corrective treatment;
• evidence of financial loss.

The objective is to reconstruct the medical event in a way that allows a qualified expert and ultimately the court to answer the central question:

Did the healthcare provider breach its legal and medical obligations, and did that breach cause compensable harm?

This article explains how foreign patients can collect and use evidence to prove medical malpractice in Turkey.

What Must Usually Be Proven in a Medical Malpractice Claim?

A malpractice case is rarely proved simply by demonstrating that the patient’s condition worsened after treatment.

Depending on the legal relationship and type of healthcare institution, the precise legal classification may differ.

However, a compensation claim will generally require analysis of several core elements:

1. The healthcare provider’s duty or obligation.
2. A breach of the applicable medical or contractual standard.
3. Damage suffered by the patient.
4. A causal connection between the breach and the damage.

A recent Court of Cassation decision illustrates the importance of this structure.

In Yargıtay 3rd Civil Chamber, E. 2025/6156, K. 2026/2829, dated 6 May 2026, the Court considered a malpractice claim involving a postoperative bowel injury. Expert analysis concluded that the operation complied with medical technique, the bowel injury was a foreseeable complication, the complication management was appropriate and certain alleged subsequent losses lacked a causal connection with the original procedure. The Court emphasised that damage alone was insufficient where fault and causation were not established.

This is why evidence must do more than show that the patient was injured.

It should help answer:

Why did the injury occur?

and

Was that cause legally attributable to the healthcare provider?

Medical Records Are Usually the Starting Point

The medical file is often the most important source of evidence.

A complete record may reveal:

• the patient’s initial symptoms;
• diagnosis;
• pre-existing medical conditions;
• tests performed;
• risk factors;
• treatment decisions;
• timing of medical intervention;
• medications;
• operation details;
• postoperative monitoring;
• development of complications;
• consultations with other specialists;
• discharge decisions.

A patient may remember that he or she complained of severe pain at 2:00 p.m.

The nursing record may confirm it.

The hospital may claim that the surgeon was immediately informed.

The consultation record may show that the surgeon was not contacted until six hours later.

The patient may say that a CT scan should have been ordered urgently.

The file may establish exactly when imaging was requested and performed.

This chronology can be decisive.

Foreign Patients Have a Right to Obtain Medical Records

A healthcare institution should not be treated as the only party entitled to possess information about the patient’s treatment.

Under Turkish patient-rights legislation, patients have rights to inspect and obtain copies of health-related records.

For international medical tourists, the current International Health Tourism and Tourist Health Regulation, effective since 26 April 2025, creates additional documentation obligations. Healthcare institutions must record and archive health-service information within the regulatory system, and the Regulation also creates specific rights concerning invoices, medicines, medical materials, laboratory results and radiological images.

Therefore, a foreign patient who suspects malpractice should normally request the complete record as early as possible.

Do not ask only:

“Please send my medical report.”

That may produce only a discharge summary.

Instead, identify the records individually.

Which Medical Records Should Be Requested?

Depending on the case, the patient should consider requesting:

• admission records;
• emergency-room records;
• examination notes;
• medical history;
• consultation records;
• preoperative assessment;
• laboratory results;
• pathology reports;
• CT, MRI and X-ray images;
• radiology reports;
• ultrasound records;
• informed-consent forms;
• patient-information documents;
• anaesthesia assessment;
• anaesthesia chart;
• operative report;
• surgical notes;
• nursing records;
• vital-sign charts;
• medication-administration records;
• intensive-care records;
• specialist consultation requests;
• postoperative follow-up;
• discharge documentation;
• complication-management records;
• implant information;
• medical-device records;
• before-and-after photographs.

The list should be adapted to the treatment.

A dental malpractice case requires different records from a bariatric surgery case.

A hair transplant dispute may require graft and team documentation.

A fatal medical negligence case may require intensive-care records, resuscitation documentation and forensic records.

The Operative Report Can Be Critical

The operative report explains what happened during surgery.

It may record:

• procedure performed;
• surgical technique;
• anatomical findings;
• unexpected events;
• bleeding;
• organ injury;
• implant information;
• additional procedures.

Suppose a foreign patient was told that a minimally invasive procedure would be performed.

The postoperative result suggests something different.

The operative report can clarify what the surgeon actually did.

In malpractice litigation, the operative report should therefore rarely be omitted from the evidence request.

Anaesthesia Records Can Reveal a Different Type of Malpractice

Not every surgical injury is caused by the surgeon.

Some serious injuries may concern:

• anaesthetic dosage;
• oxygen levels;
• blood pressure;
• airway management;
• cardiac monitoring;
• recovery-room supervision.

A case involving loss of consciousness, cardiac arrest, neurological injury or unexplained postoperative deterioration may therefore require review by an anaesthesia specialist.

The patient’s file should include the relevant anaesthesia and monitoring records.

Radiological Images May Be More Important Than the Radiology Report

A written radiology report contains the radiologist’s interpretation.

But another specialist may later reach a different conclusion by examining the original images.

This can be especially important where the allegation involves:

• delayed diagnosis;
• overlooked internal bleeding;
• implant positioning;
• orthopaedic surgery;
• dental implants;
• tumour diagnosis;
• postoperative leakage.

Foreign patients should therefore seek the original digital imaging where available rather than relying only on the written report.

The 2025 International Health Tourism Regulation specifically provides international patients with rights to obtain qualifying radiological images and laboratory/test results paid for by the patient.

Missing Medical Records Can Become Evidence in Their Own Right

One of the most important Turkish Constitutional Court decisions in medical malpractice evidence is Eyüp Kurt, B. No. 2015/6926, 4 April 2019.

The applicant suffered permanent disability after medical treatment.

An important problem was that examination findings and records necessary to evaluate what had happened were unavailable.

The Constitutional Court emphasised the responsibility of the healthcare institution to record and preserve relevant treatment information.

The Court concluded that the absence of records that should have been maintained should not simply result in an evidential disadvantage for the patient.

This principle is extremely important.

Imagine that the hospital argues:

“The patient cannot prove that neurological findings were present during the examination because there is no record.”

But the hospital itself had the responsibility to record those findings.

In such circumstances, the missing documentation cannot necessarily be treated as though the evidential problem were entirely the patient’s responsibility.

Missing Records Do Not Automatically Prove Malpractice

The Eyüp Kurt principle should not be exaggerated.

It does not mean:

“No record = automatic compensation.”

The court must still evaluate the entire case.

But where the absence of documentation results from the healthcare provider’s failure to maintain records that should have existed, that deficiency must be considered fairly when assessing the evidence.

This can be particularly important where missing documents concern:

• neurological examination;
• postoperative vital signs;
• consent;
• medication;
• consultation timing;
• surgical findings;
• complication management.

The Timeline Is Often More Important Than the Final Diagnosis

Medical malpractice frequently concerns delay.

A complication may itself be unavoidable.

But the hospital may be responsible if it failed to recognise or treat the complication quickly enough.

For example:

10:00 — patient reports severe abdominal pain.

11:00 — blood pressure drops.

12:30 — laboratory results show deterioration.

16:00 — surgeon is contacted.

20:00 — imaging is ordered.

23:00 — emergency surgery begins.

An expert can then determine whether the response complied with accepted medical practice.

Without contemporaneous medical records, a delay case is much harder to analyse.

Foreign patients should therefore obtain not only major reports but also everyday nursing and monitoring documentation.

Court-Appointed Expert Evidence Is Central in Turkish Malpractice Cases

Medical negligence involves questions that judges cannot ordinarily answer through legal knowledge alone.

Turkish Code of Civil Procedure Article 266 provides that a court may appoint an expert where resolution of the case requires special or technical knowledge outside ordinary legal expertise.

Medical malpractice cases are classic examples.

A court may need experts to determine:

• whether the diagnosis was correct;
• whether surgery was indicated;
• whether treatment was timely;
• whether technique complied with accepted standards;
• whether a complication was avoidable;
• whether complication management was appropriate;
• whether an injury was caused by the treatment;
• whether the damage is permanent.

The precise expert specialties should correspond to the dispute.

A neurosurgical case should not be analysed only by an unrelated specialty.

A complicated cardiovascular case may require cardiovascular surgery and radiology expertise.

A Strong Expert Report Must Answer the Actual Allegations

A generic report saying:

“Treatment was medically appropriate.”

may not be enough.

A major Court of Cassation decision illustrates this point.

In Yargıtay 3rd Civil Chamber, E. 2024/1971, K. 2025/1521, dated 12 March 2025, relatives brought a medical malpractice claim after a patient’s death.

Earlier reports had generally concluded that the healthcare professionals were not at fault.

However, the claimants argued that the reports failed to address their specific allegations concerning diagnosis, timing and treatment.

The Court of Cassation held that the existing expert reports did not adequately answer the claimants’ arguments and that the private expert opinion submitted by the claimants had not properly been evaluated.

It ordered a new expert examination by an appropriate multidisciplinary university-hospital panel addressing matters including delay, treatment timing, organisation of care and causation.

This decision is particularly important for foreign patients.

An unfavourable expert report does not always mean the case is over.

The correct question is:

Did the expert report actually analyse the disputed medical issues?

Patients Can Challenge a Court-Appointed Expert Report

Under Article 281 of the Turkish Code of Civil Procedure, the parties generally have two weeks from service of the expert report to ask for:

• completion of missing issues;
• clarification of unclear issues;
• or appointment of a new expert.

Where preparing the objection within the ordinary period is very difficult or requires special technical work, an additional period of up to two weeks may be available under the statutory conditions.

The court can request an additional report or appoint another expert where necessary.

For malpractice cases, expert objections should be technical rather than emotional.

Instead of saying:

“I disagree with this report.”

a useful objection might say:

“The report does not evaluate the patient’s recorded hypotension between 14:00 and 19:00, does not address why imaging was delayed for six hours and does not analyse whether earlier intervention would probably have avoided permanent organ damage.”

That forces the real medical question into the expert analysis.

A Foreign Patient Can Obtain an Independent Expert Opinion

Turkish civil procedure also allows parties to obtain their own scientific expert opinions.

Article 293 provides that parties may obtain a scientific opinion from an expert concerning the subject matter of the dispute.

The court may also summon that expert to answer questions from the judge and parties.

This is highly valuable in medical malpractice litigation.

An independent expert opinion may:

• identify weaknesses in the hospital’s defence;
• explain why a court-appointed report is incomplete;
• identify relevant medical literature;
• highlight causation;
• recommend the correct specialty for further expert examination.

The Court of Cassation’s 12 March 2025 malpractice judgment specifically emphasised that a relevant party-appointed expert opinion must be evaluated and cannot simply be ignored.

Does an Independent Foreign Doctor’s Report Prove Malpractice?

It can be important evidence, but it should not automatically be viewed as replacing court-appointed expert analysis.

Suppose a British patient receives a written opinion from a consultant surgeon in London stating:

“The operation performed in Turkey fell below accepted surgical standards and caused permanent nerve damage.”

That document may be very valuable.

It may help:

• identify the medical error;
• establish corrective-treatment needs;
• formulate the Turkish lawsuit;
• challenge another expert report.

However, the Turkish court will still evaluate the evidence according to Turkish procedural rules.

Where appropriate, the report can be presented as a scientific expert opinion and may need proper Turkish translation.

The court can then consider it alongside other evidence and court-appointed expert analysis.

Foreign Corrective-Treatment Records Can Also Prove Causation

Suppose a patient undergoes surgery in Turkey and then receives emergency treatment in Germany.

The German hospital finds:

• an improperly positioned implant;
• internal injury;
• severe infection;
• untreated complication.

Those records may provide important objective evidence.

Patients should preserve:

• admission records;
• operative reports;
• radiology;
• photographs;
• specialist reports;
• discharge summaries;
• pathology;
• invoices.

Do not preserve only the final invoice.

The medical findings themselves may be far more important to establishing malpractice than the cost.

Informed Consent Is a Separate Evidential Question

A patient may fail to prove a technical surgical error but still establish a legally important informed-consent violation.

The Turkish Constitutional Court’s Ahmet Acartürk judgment is particularly important.

The Court explained that patients must receive sufficient information concerning the proposed medical procedure and its risks so that they can meaningfully participate in the treatment decision.

Crucially, it stated that the burden of proving informed consent for the particular medical intervention rests with the doctor or hospital.

In that case, the consent documentation concerned different treatment and did not demonstrate informed consent for the particular operation that caused the disputed consequences.

Therefore, the hospital cannot necessarily defeat an informed-consent allegation by producing any document containing the patient’s signature.

The document must relate to the actual intervention and the relevant risks.

What Evidence Is Useful in an Informed Consent Dispute?

Request and preserve:

• signed consent form;
• information form;
• translations;
• interpreter records;
• consultation notes;
• video consultation communications;
• WhatsApp messages;
• emails;
• evidence showing when the form was signed.

Questions include:

Was the relevant complication disclosed?

Was the form specific to the treatment?

Could the foreign patient understand the language?

Was the risk explained orally?

Was sufficient time given before elective treatment?

The Constitutional Court has stressed both adequate information and sufficient opportunity for a patient to make an informed decision.

WhatsApp Messages Can Be Important Evidence

Medical tourism operates heavily through electronic communication.

Patients may communicate with:

• surgeon;
• clinic coordinator;
• medical-tourism intermediary;
• hospital employee.

These conversations may establish facts that do not appear in the formal medical file.

Examples include:

“The doctor says this swelling is normal.”

“Do not go to another hospital.”

“Wait another three days even though you have fever.”

“Dr X will personally perform your entire operation.”

“There is no risk of permanent scarring.”

Under Article 199 of the Turkish Code of Civil Procedure, electronic data capable of proving disputed facts can qualify as documents.

WhatsApp evidence can therefore be legally relevant.

Preserve Complete Conversations, Not Only Selected Screenshots

Context matters.

One screenshot may be misleading.

The clinic may argue that earlier or later messages change its meaning.

The patient should therefore preserve:

• complete conversation history;
• sender identity;
• dates and times;
• photographs or documents exchanged;
• voice messages where lawfully obtained;
• payment discussions;
• postoperative complaints.

Where possible, retain original digital files rather than repeatedly forwarding or editing them.

The more reliable the authenticity and context, the more useful the material can be.

Photographs Are Especially Important in Cosmetic Malpractice

Aesthetic surgery cases can be highly visual.

Evidence should show:

before treatment,

early postoperative period,

healing process,

and

final condition.

Photographs may demonstrate:

• asymmetry;
• tissue necrosis;
• scarring;
• deformity;
• implant displacement;
• donor-area damage;
• dental defects.

Article 199 expressly includes photographs and images among information carriers capable of constituting documentary evidence.

The strongest photographs are generally:

• dated;
• high resolution;
• unedited;
• consistent in lighting and angle where possible.

Clinic-generated preoperative photographs should also be requested.

Social Media Advertising Can Help Establish What Was Promised

Medical tourism providers frequently market treatments through:

• Instagram;
• TikTok;
• clinic websites;
• online advertisements.

These materials may become relevant where the dispute concerns:

• guaranteed result;
• named doctor;
• recovery time;
• scars;
• procedure technique;
• number of implants or grafts.

Patients should preserve relevant marketing content early.

Online content can disappear after a dispute starts.

However, advertising should not be treated in isolation.

Its significance is strongest where it can be connected to the actual patient’s treatment negotiations.

Payment Records Can Prove the Contractual Structure

Medical malpractice cases may involve several entities.

The surgeon may work at one hospital.

The patient may have paid a medical tourism intermediary.

The clinic may use a different commercial company.

Payment evidence helps identify the legal relationship.

Preserve:

• bank transfers;
• credit-card statements;
• invoices;
• receipts;
• deposit confirmations;
• payment links.

This can help answer:

Who received the money?

Who promised the treatment?

Who issued the invoice?

These questions can become crucial when identifying the proper defendant.

Evidence of Damage Is Just as Important as Evidence of Fault

Even if malpractice is established, compensation must still be supported by evidence.

Foreign patients should preserve documentation of:

• corrective surgery;
• rehabilitation;
• medication;
• physiotherapy;
• travel for necessary treatment;
• lost income;
• permanent disability;
• future treatment.

For lost-income claims, useful evidence may include:

• employment contract;
• payslips;
• tax records;
• employer confirmation;
• business accounts.

A malpractice lawsuit should prove not only:

“The doctor made an error.”

but also:

“This is what the error cost the patient.”

Permanent Disability Requires Medical Proof

A patient may feel permanently disabled, but compensation for long-term working-capacity loss normally requires objective medical assessment.

Relevant issues include:

• permanence;
• causal relationship;
• degree of impairment;
• effect on working capacity;
• future medical needs.

A patient’s own description is important but cannot usually replace specialist medical evaluation.

Causation Is Often the Hardest Part of the Case

The healthcare provider may admit that an error occurred but deny that the error caused the patient’s current condition.

For example:

Hospital: “Yes, diagnosis was delayed for two hours, but earlier diagnosis would not have changed the outcome.”

Or:

Patient: “The surgery caused my chronic pain.”

Hospital: “The pain comes from the patient’s pre-existing disease.”

This is a causation dispute.

Evidence may include:

• pre-treatment medical records;
• postoperative chronology;
• independent expert reports;
• scientific literature;
• subsequent treatment records.

A well-structured expert question should focus directly on the causal issue.

Pre-Treatment Records Can Protect the Patient From “Pre-Existing Condition” Defences

Healthcare providers may argue that the patient’s injury existed before treatment.

A foreign patient should therefore preserve earlier health records.

For example:

A patient claims that surgery caused nerve damage.

Preoperative examination shows normal neurological function.

Postoperative records show immediate loss of sensation.

That comparison can be powerful.

Likewise, preoperative photographs are crucial where a cosmetic surgeon later claims that postoperative asymmetry already existed before surgery.

Expert Specialisation Matters

A malpractice report is only as useful as the expertise behind it.

A dispute concerning retinal surgery requires ophthalmological expertise.

A dental implant case may require oral surgery and prosthodontic expertise.

A complex death after cardiovascular treatment may require several specialties.

The Court of Cassation’s 2025 judgment is instructive: it ordered a new expert panel including relevant cardiovascular and radiological expertise because existing reports had not sufficiently addressed the disputed medical questions.

This is why lawyers should carefully frame which experts are needed.

The Court Is Not Automatically Bound by an Expert Report

Expert reports are extremely important, but the expert does not replace the judge.

Turkish procedural law provides that the court evaluates expert opinion together with the other evidence.

The judge remains responsible for the legal decision.

A court should therefore not simply copy the conclusion:

“No malpractice.”

It should evaluate whether that conclusion is reasoned, technically supported and consistent with the remaining evidence.

What Makes an Expert Report Weak?

Warning signs include:

• no clear timeline;
• failure to discuss the claimant’s allegations;
• unexplained conclusion;
• wrong medical specialty;
• failure to analyse causation;
• treating “complication” as the end of the analysis;
• failing to consider informed consent;
• ignoring important foreign treatment records;
• ignoring a detailed party-appointed expert opinion.

The Court of Cassation’s 12 March 2025 decision demonstrates that a superficial malpractice report that fails to answer the claimant’s specific allegations may be inadequate for judgment.

“It Was a Complication” Must Be Proven Medically

Healthcare providers frequently rely on complication as a defence.

A complication may indeed occur despite proper treatment.

But the analysis must usually go further.

The expert should consider:

1. Was the event a recognised complication?
2. Was the procedure properly indicated?
3. Were reasonable precautions taken?
4. Was the patient informed?
5. Was the complication detected in time?
6. Was it managed according to medical standards?
7. Did delay or poor management worsen the injury?

In its 6 May 2026 decision, the Court of Cassation accepted the defence because expert evidence established not only that the bowel injury was a foreseeable complication but also that management was appropriate and certain alleged later losses lacked causation.

Therefore, “complication” should be treated as a medical conclusion requiring evidence, not as a magic legal word.

Can Witnesses Help Prove Medical Malpractice?

Witness evidence can sometimes be useful, although witnesses normally cannot replace medical expertise.

A spouse or companion may prove facts such as:

• patient repeatedly complained of severe symptoms;
• doctor refused to examine the patient;
• no interpreter was provided;
• patient did not understand the consent form;
• clinic promised a specific doctor;
• hospital staff told the patient not to seek emergency treatment.

The witness normally cannot scientifically establish:

“The operation technique was negligent.”

That requires medical expertise.

Witnesses prove observed facts.

Experts interpret medical significance.

Foreign Patients Should Preserve Evidence Before Revision Surgery

Corrective surgery may change the original physical condition.

Before undergoing revision, where medically safe and practical, preserve:

• photographs;
• radiological images;
• independent medical examination;
• specialist report.

The new surgeon’s operative report can also be very important.

For example, the corrective surgeon may document:

“The implant was positioned outside the intended anatomical plane.”

That finding can become powerful evidence regarding the original procedure.

Medical safety should always come first, but evidence preservation can take place alongside urgent treatment where possible.

Do Not Destroy the Original Implant or Medical Device Where It May Matter

In some disputes, a removed implant or device can have evidential value.

Examples may include:

• breast implant;
• dental implant component;
• prosthetic component;
• defective medical device.

Whether physical preservation is necessary depends on the case.

The patient should seek legal and medical advice before disposing of potentially relevant material where a product or implantation defect is suspected.

Foreign Documents May Need Turkish Translation

Turkish courts conduct proceedings in Turkish.

Foreign medical reports, invoices, employment records and other documents may therefore need proper Turkish translation for effective use in proceedings.

Patients should preserve the original foreign document alongside the translated version.

Do not rely only on an informal summary.

The original is important for authenticity and expert evaluation.

Evidence Should Be Collected Before Limitation Periods Become a Problem

Evidence preservation and limitation analysis should take place simultaneously.

Do not spend years gathering records without checking whether the legal claim itself is subject to an approaching deadline.

The applicable limitation regime can differ according to:

• private or public hospital;
• contractual or tort basis;
• consumer-law classification;
• type of medical procedure.

Public-hospital cases in particular involve separate administrative preliminary application rules.

Early evidence collection should therefore accompany early legal classification of the case.

Can a Foreign Patient Prove Malpractice Without Returning to Turkey?

Often, substantial parts of the evidence process can be managed through Turkish counsel.

An appropriately authorised lawyer may potentially:

• request hospital records;
• obtain procedural documents;
• engage an independent expert;
• preserve electronic communications;
• initiate mediation where required;
• file the claim;
• challenge expert reports.

The foreign patient can provide:

• foreign medical records;
• photographs;
• WhatsApp records;
• invoices;
• employment documents

from abroad.

Whether physical attendance later becomes necessary depends on the case.

A Practical Evidence Checklist for Foreign Patients

A foreign patient who suspects malpractice should ideally create five evidence folders.

Folder 1 — Turkish Medical Records

Include:

• operative report;
• anaesthesia records;
• consent forms;
• laboratory results;
• radiology;
• nursing notes;
• discharge summary.

Folder 2 — Communications

Include:

• WhatsApp;
• emails;
• advertisements;
• treatment quotations;
• instructions after surgery.

Folder 3 — Visual Evidence

Include:

• before photographs;
• postoperative photographs;
• scans;
• videos where relevant.

Folder 4 — Foreign Corrective Treatment

Include:

• independent specialist opinions;
• emergency treatment;
• revision surgery;
• foreign hospital records.

Folder 5 — Financial Loss

Include:

• invoices;
• corrective-treatment expenses;
• payslips;
• tax records;
• lost-income evidence.

This organisation can substantially improve the efficiency of legal and medical analysis.

Frequently Asked Questions

What is the most important evidence in a Turkish medical malpractice case?

There is no single document. The strongest evidence usually combines the complete medical file, expert analysis, causation evidence and proof of damage.

Are medical records enough to prove malpractice?

Not always. Medical records provide the factual foundation, but specialist expert interpretation is generally required to determine whether treatment complied with accepted medical standards.

What if hospital records are missing?

Missing records that the healthcare institution should have maintained can become legally important. The Constitutional Court’s Eyüp Kurt judgment held that the evidential consequences of missing provider-controlled records should not simply be imposed on the patient.

Does missing documentation automatically prove the doctor was negligent?

No. It is an important evidential issue, but liability still requires evaluation of the entire case.

Can WhatsApp messages be used?

Potentially. Article 199 of the Turkish Code of Civil Procedure recognises electronic data, photographs, images and similar information carriers as documents where they are capable of proving disputed facts.

Are before-and-after photographs useful?

Yes, particularly in cosmetic, dental and hair-transplant cases. They can help establish the patient’s original condition and postoperative result.

Can an independent doctor in the UK prepare a report?

Yes. A foreign specialist opinion may be very useful in identifying malpractice and framing the case. Turkish procedural law also permits parties to submit scientific expert opinions under Article 293, although the court remains responsible for evaluating the evidence and may obtain its own expert report.

Is a private expert report binding on the court?

No. However, a relevant expert opinion should be considered. The Court of Cassation has overturned a medical malpractice judgment where the claimant’s expert opinion and detailed objections were not adequately addressed.

What happens if the court-appointed expert says there was no malpractice?

The patient can examine whether the report actually answers all material allegations. Article 281 allows objections, requests for clarification and, where appropriate, a new expert examination.

How long do I have to object to an expert report?

Under Article 281, the ordinary period is two weeks from service of the report. A limited additional period may be available under the statutory conditions for technically difficult objections.

Who must prove informed consent?

The Constitutional Court has stated that the burden of proving informed consent for the particular intervention lies with the doctor or hospital.

Is a signed consent form enough?

Not necessarily. The form should relate to the actual intervention and the patient should have been appropriately informed about the relevant medical risks.

Can subsequent treatment abroad be used as evidence?

Yes. Foreign hospital records, corrective surgery findings and independent specialist reports may be highly relevant to causation and damages.

Do foreign medical documents need translation?

For Turkish proceedings, foreign documents will generally need to be presented in a form usable before a Turkish court, which commonly includes appropriate Turkish translation. Preserve the originals.

Can the patient sue without coming back to Turkey?

Potentially. Many procedural and evidence-gathering steps can be conducted through appropriately authorised Turkish counsel.

Conclusion: Medical Malpractice Is Proven by Building an Evidence Chain

Proving medical malpractice in Turkey is rarely about finding one dramatic document.

The strongest cases are built through an evidence chain.

The first link is the patient’s condition before treatment.

The second is the healthcare provider’s decision-making.

The third is the treatment itself.

The fourth is the development and management of complications.

The fifth is the resulting injury.

The sixth is the causal connection between the provider’s conduct and that injury.

Medical records help reconstruct that chain.

The complete file may show exactly when symptoms were reported, what the doctor observed, what tests were ordered, when intervention occurred and how the patient was monitored.

For foreign medical tourists, Turkey’s updated International Health Tourism and Tourist Health Regulation provides additional record and documentation protections, including access to specified laboratory results, radiological images and detailed healthcare documentation.

Where records that should exist are missing, the patient should not automatically assume that the claim is impossible.

The Turkish Constitutional Court’s Eyüp Kurt judgment establishes an important principle: healthcare institutions bear responsibility for recording and preserving relevant treatment information, and evidential deficiencies caused by missing records should not simply operate against the patient.

Expert evidence is then used to interpret the record.

Turkish civil procedure allows courts to appoint experts where technical knowledge is necessary, and medical malpractice claims typically require specialist analysis.

But an expert report must do more than provide a conclusion.

It should respond to the actual allegations.

The Court of Cassation demonstrated this clearly in E. 2024/1971, K. 2025/1521, dated 12 March 2025.

There, earlier expert reports broadly found no fault, but the Court concluded that they had not adequately addressed the claimants’ specific arguments and that the private expert opinion submitted by the claimants had not properly been considered.

It ordered a new specialist multidisciplinary examination capable of analysing treatment timing, alleged delay, hospital organisation and causation.

This decision is especially important for foreign patients faced with an initial negative expert report.

The right question is not merely:

“Did the expert say malpractice occurred?”

It is:

“Did the expert evaluate all medically relevant evidence and answer every important allegation?”

Turkish procedural law allows parties to challenge an incomplete expert report and request clarification, supplementation or a new examination under Article 281.

Patients can also strengthen their position with a scientific expert opinion under Article 293.

A report from an experienced independent doctor—whether obtained in Turkey or potentially from an appropriate specialist abroad—can help identify technical errors, explain causation and expose weaknesses in a court-appointed expert report.

Electronic evidence should also not be ignored.

Article 199 of the Turkish Code of Civil Procedure expressly recognises written material, photographs, video, audio and electronic data as documents where they are capable of proving disputed facts.

For a medical tourist, this can make evidence such as:

WhatsApp messages,

emails,

before-and-after photographs,

digital simulations,

postoperative instructions,

and

online representations

highly relevant.

These materials may show what the clinic promised, what symptoms the patient reported and how healthcare staff responded.

Informed consent creates another evidential layer.

The Constitutional Court’s Ahmet Acartürk judgment emphasises that patients must have adequate information about the particular intervention and relevant risks, and that proving valid informed consent is the responsibility of the doctor or hospital.

Accordingly, a foreign patient should not assume that a Turkish-language signature page necessarily ends the consent issue.

The evidence should establish whether the patient was actually informed about the procedure and material risks in a way that allowed a meaningful decision.

Finally, proving malpractice is only half of a compensation claim.

The patient must also prove damage.

Preserve evidence of:

revision surgery,

future treatment,

permanent disability,

lost salary,

loss of working capacity,

medical expenses,

and other resulting financial losses.

The strongest strategy is therefore to collect evidence in parallel rather than sequentially.

Obtain the Turkish medical file.

Preserve electronic communications.

Document the physical result.

Obtain independent medical analysis.

Collect records from corrective treatment abroad.

Preserve financial-loss documents.

Challenge incomplete expert reports with specific technical objections.

For foreign patients, physical distance from Turkey does not necessarily prevent this process.

An appropriately authorised Turkish lawyer may coordinate the medical record request, identify the healthcare entities, arrange legal proceedings, obtain or challenge expert evidence and incorporate medical and financial documents from the patient’s home country.

If you believe medical treatment in Turkey caused permanent injury, an avoidable complication, a failed cosmetic result, dental damage or the need for corrective surgery, the quality of the evidence collected in the first stages can determine the strength of the entire malpractice claim. The goal is not merely to show that something went wrong, but to prove through records and specialist evidence what went wrong, why it happened, who was responsible and what damage it caused.

Legal Disclaimer

This article provides general information concerning evidence and proof in Turkish medical malpractice proceedings as of September 2026. It does not constitute individual legal advice.

The applicable evidential burden, procedural rules, competent court, expert requirements and legal consequences depend on the healthcare provider, procedure, contractual relationship, medical records, type of damage and circumstances of each case.

Foreign medical documents, expert opinions and electronic communications should be assessed individually before use in Turkish legal proceedings.