Medical records, doctor's certificates and lab report translation with certification

Medical translation must preserve diagnoses, disease codes, dosages and measurement units exactly as issued. A medium-sized set takes 2–5 working days, and files used abroad normally require a translator's certificate of accuracy, followed by Department of Consular Affairs and destination embassy legalisation where the receiving party requires it.
Who this is for: People filing international health insurance claims, patients continuing treatment abroad, students and visa applicants who must show medical history.
Key facts
| Document types | Medical records, doctor's certificates, lab results, imaging reports, prescriptions, hospital invoices |
|---|---|
| Standard turnaround | 2–5 working days for a medium set; large sets quoted case by case |
| Certification | Translator's certificate of accuracy with the responsible party's contact details |
| Confidentiality | Handled under confidentiality terms with access-controlled file transfer |
Documents to prepare
- Complete hospital-issued records or certificates, every page included
- Patient consent for disclosure where the requester is not the patient
- Patient passport or ID so names match across documents
- Insurer or receiving hospital forms, if any
- Written list of what the receiving party requires
How the work actually runs
- 1. Assess the set and terminology
Check page count, legibility of clinical handwriting and the specialist terms that need standard equivalents.
Handled by: Translation team · Time: Same day
- 2. Confirm name and date conventions
Names follow the passport spelling, and date formats are aligned to the destination without altering meaning.
Handled by: Translation team and client · Time: Same day
- 3. Translate and build a glossary
Disease codes, dosages, units and drug names are preserved, with a glossary attached for traceability.
Handled by: Medical translator · Time: 2–4 working days
- 4. Two-stage review
A second linguist compares line by line against the source, focusing on numbers, dates and dosages where errors are most damaging.
Handled by: Reviewer · Time: 1 working day
- 5. Issue the certificate of accuracy
A signed certificate with a job reference number so the receiving party can verify the translation.
Handled by: Operations team · Time: Same day
- 6. Further legalisation if required
Submit to Consular Affairs and the destination embassy when a full chain is requested.
Handled by: Filing team · Time: 2–5 working days per authority
Why cases get rejected
- Incomplete scans that leave gaps in the treatment history and trigger insurer queries
- Using unfamiliar brand names instead of keeping the generic drug name
- Converting or rounding lab units, which undermines the document's credibility
- Patient names spelled differently from the passport
- No consent form, so the hospital will not release the source records
Compare your options
| Option | Use when | Time | Note |
|---|---|---|---|
| Certified translation only | The insurer or hospital accepts a translator's certificate | 2–5 working days | The most common route for claims |
| Certified translation plus attorney notarisation | The destination wants an additional certified signature | 3–6 working days | Adds notarisation of the translator's signature |
| Translation plus consular and embassy legalisation | Filing with a foreign government authority | 5–12 working days | Until 27 Feb 2027 the consular chain applies |
Frequently asked questions
Do medical records need a specialist translator?
They should have one. Clinical documents are full of abbreviations and diagnostic terms where a single mistranslation can change a claim outcome, so we use medical translators plus a second review.
What if the doctor's handwriting is illegible?
We collect the unclear passages and ask the hospital for a typed version or confirmation. We never guess, because guessing puts the patient at risk.
Can I file an overseas insurance claim directly?
Usually yes, with the certificate of accuracy attached, though some insurers prescribe their own form, so send us their checklist first.
How is patient data protected?
We work under confidentiality terms, restrict access to the assigned team and delete files on the schedule agreed with you.
Are lab units kept as issued?
Always. If the destination uses different units, we add a note rather than converting values, so reference ranges stay intact.
What about very large record sets?
Large sets are planned case by case and delivered in batches so the urgent portion can be filed first.
Do you translate into languages other than English?
Yes. We match a translator with medical experience in the target language.
Can you deal with the hospital for me?
Yes. We coordinate record requests, translation, certification and any consular or embassy filing, and report progress along the way.
Medical translation is data integrity work, not just language work. Our advisers, with over 15 years of experience, confirm which period and which documents the receiving party actually needs before translation starts, so nothing is over- or under-translated.
Send your documents on LINE for a reviewRather not handle the paperwork? Our advisory team, 15+ years in the field, runs the whole chain for you.
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Official sources
Talk to our advisory team before you start
Our team has over 15 years of experience in translation, certification, and filings with Thai and overseas authorities. We advise on choosing the correct certification route, sequencing your documents, and repairing files that were previously refused.
- A case review before work begins, so you only prepare the documents that are genuinely required
- The correct order of steps from day one, reducing the risk of a refusal and a restart
- A plain explanation of the destination authority's stated requirements as published at the time of advice
- If you would rather not handle it yourself, we run the full process end to end and return the finished file
Final acceptance rests with the receiving authority. Our guidance follows the latest verifiable published practice.