Certified Translation of Medical Certificates and Diagnosis Certificates from Mainland China, Taiwan, Hong Kong, and Macau

Medical certificates and diagnosis certificates from Mainland China, Taiwan, Hong Kong, and Macau are important medical documents that may be required for use in Canada in insurance claims, employment matters, sick leave records, school files, immigration applications, disability-related documentation, legal proceedings, accident claims, travel insurance, benefits administration, medical referrals, and other official or administrative matters. For certified translation purposes, these documents should not be treated as the same thing as a full medical report, laboratory report, imaging report, hospital discharge summary, prescription, medical receipt, vaccination record, death certificate, birth certificate, or health examination form, although these documents may sometimes be submitted together. A diagnosis certificate usually records a medical practitioner’s diagnosis, treatment recommendation, rest period, follow-up instruction, or other clinically relevant statement based on a patient encounter.

One of the most important features of this document category is that the terminology differs across regions. In Mainland China, a document may be called 疾病診斷書, 疾病诊断书, 診斷證明書, 诊断证明书, 醫學診斷證明, 医学诊断证明, 病假證明, 病假证明, or a related title. In Taiwan, 診斷證明書 is common and may be rendered as Diagnosis Certificate or Medical Certificate depending on the hospital’s wording. In Hong Kong, the term Medical Certificate is widely used, especially for sick leave certificates issued by public hospitals or clinics. In Macau, documents may appear as 醫生檢查證明書, 医生检查证明书, medical certificate, or Portuguese Atestado médico. A certified translation should follow the source title while making the function clear to Canadian readers.

A diagnosis certificate usually contains patient information, medical institution information, diagnosis, date of consultation, department or specialty, doctor’s name, doctor’s signature, hospital or clinic stamp, period of recommended rest, date of issue, and sometimes treatment notes or follow-up advice. Some certificates are brief and designed mainly for sick leave. Others may be more detailed and include injury description, surgical history, hospitalization period, pregnancy-related information, disease category, occupational injury details, mobility limitations, or recommendations for work or school accommodation. The translation should preserve the degree of detail shown in the source and should not expand a short certificate into a full medical opinion.

Mainland Chinese diagnosis certificates often depend on direct medical examination. Official rules state that medical institutions may not issue disease diagnosis certificates, health certificates, death certificates, or similar documents without the patient being personally examined by a physician or medical practitioner. This reflects the evidentiary nature of the document: it is not simply a patient’s own statement, nor is it a translation of symptoms reported by the patient. A Mainland Chinese diagnosis certificate may contain a hospital name, outpatient or inpatient department, medical record number, patient name, sex, age, diagnosis, recommendation, rest period, doctor’s signature, date, and hospital seal. Some hospitals also require review and stamping by a medical affairs office or outpatient office.

Taiwan diagnosis certificates are commonly issued by hospitals and clinics after treatment. They may show the patient’s name, national identification number or passport number, date of birth, diagnosis, treatment dates, outpatient visits, hospitalization period, surgery details, recommended rest, doctor’s name, physician licence or stamp, institution seal, and issue date. Taiwan documents may also use the Republic of China calendar, also known as the Minguo calendar. A date written as Republic of China Year 113 corresponds to 2024, not year 113. For Canadian use, such dates must be handled carefully because a wrong date can affect insurance, leave, immigration, school, or legal deadlines.

Hong Kong medical certificates may appear in English, Chinese, or bilingual form. In Hospital Authority settings, medical certificates are commonly associated with sick leave and may be issued electronically with digital signatures. Private clinics, specialist offices, Chinese medicine practitioners, dentists, physiotherapists, and hospitals may issue different forms of medical certificates or reports depending on the purpose. A Hong Kong certificate may show the patient’s name, Hong Kong identity card number, consultation date, period of sick leave, diagnosis or condition, doctor’s name, clinic address, registration details, digital signature, QR code, or verification instructions. Even where some English is present, Chinese names, diagnosis wording, seals, or remarks may still require certified translation.

Macau medical certificates may be issued in Chinese, Portuguese, English, or bilingual form depending on the institution and purpose. A document may come from a health centre, public hospital, private clinic, specialist, or other medical provider. Macau’s “Doctor’s Examination Certificate” may be available through the Macao One Account system and may include electronic download and QR-code verification features. Because Macau documents may contain Chinese and Portuguese medical or administrative wording, a certified translation should preserve both the medical meaning and the local administrative context. It should not force Macau wording into Mainland Chinese, Taiwan, or Hong Kong terminology where the source uses its own style.

The patient’s identity information must be handled with care. Medical certificates may contain the patient’s Chinese name, English name, date of birth, sex, identity card number, passport number, health insurance number, hospital number, medical record number, outpatient number, or address. For use in Canada, the patient’s name should match passports, immigration records, insurance files, employment files, school records, or previous certified translations where available. A translator should not create a new romanization if an official English spelling already exists. If an identity number is masked or partly hidden, the translation should reflect the visible information only.

Diagnosis wording requires particular precision. Medical certificates may contain disease names, injury descriptions, symptoms, anatomical terms, pregnancy-related descriptions, psychiatric or psychological terms, post-operative conditions, chronic illnesses, infectious disease wording, occupational injury descriptions, disability-related statements, or follow-up instructions. A certified translator should translate the medical terminology accurately but should not provide medical interpretation beyond the source. If the source uses a broad diagnosis, the translation should remain broad. If it uses a specific medical term, that term should be translated carefully. The translator should not correct, challenge, simplify, or re-diagnose the patient.

The distinction between diagnosis and recommendation is important. A certificate may state the diagnosis in one section and provide advice in another, such as rest for a certain number of days, avoid heavy lifting, avoid work, attend follow-up appointment, require surgery, require rehabilitation, remain hospitalized, or continue observation. These are not the same as the diagnosis itself. A certified translation should preserve the structure so that Canadian readers can distinguish what the physician diagnosed from what the physician recommended. This is especially important for insurance claims, workplace leave, disability accommodations, legal files, and school absence records.

Sick leave periods and treatment dates must be translated accurately. A medical certificate may show consultation date, onset date, injury date, admission date, discharge date, surgery date, certificate issue date, follow-up date, and recommended rest period. These dates are not interchangeable. A certificate issued on one date may recommend rest for a period that begins earlier or later. A hospitalization certificate may cover a different date range from the sick leave recommendation. Taiwan Minguo dates, handwritten dates, and abbreviated date formats should be read carefully to avoid errors. In Canada, unclear date formats can create confusion between month and day.

Medical institution and doctor information may affect how the document is understood. A certificate may be issued by a hospital, clinic, health centre, emergency department, outpatient department, specialist clinic, Chinese medicine clinic, dental clinic, rehabilitation department, or other healthcare provider. It may contain a doctor’s signature, physician stamp, registration number, department seal, hospital seal, electronic signature, digital certificate, QR code, or verification statement. A certified translation should note visible seals, signatures, and electronic features where appropriate. However, translation is not authentication. The translator can translate the visible document, but cannot confirm that the certificate is genuine, current, medically sufficient, or accepted by the receiving institution.

Different documents may be needed for different purposes. A short sick leave certificate may be enough for an employer but not enough for an insurance claim. A diagnosis certificate may show the diagnosis but not the full treatment history. A discharge summary may provide hospitalization details that a simple diagnosis certificate does not include. A laboratory report or imaging report may support the diagnosis but is not the same as the certificate. A medical receipt may prove payment but not diagnosis. A certified translation should identify the document accurately and avoid making it appear more comprehensive than it is.

Partial-page translation requires caution. Some clients may ask to translate only a diagnosis line, one paragraph, or one page from a longer medical file. In some cases, this may be acceptable if the receiving institution only needs that portion. However, medical documents are context-sensitive. A missing page may contain patient identity, hospital name, date, doctor signature, seal, diagnosis, treatment advice, or limitations. If only selected portions are translated, the limitation should be clear. A translator should not combine unrelated sections into a certificate-like document or omit important visible material that changes the meaning.

Image quality is particularly important for medical certificates. These documents may include small fonts, handwritten doctor notes, stamps, abbreviations, medical terms, prescription-style handwriting, department names, and official seals. Clients should provide a clear scan or high-quality PDF of the entire certificate, including all edges, stamps, signatures, QR codes, reverse-side notes, and attachments. Mobile-phone photos with glare, shadows, folds, cropped corners, or low resolution may lead to errors in diagnoses, dates, names, and medical recommendations. If handwriting is unclear, a translator should not guess. A clearer copy or supporting document should be requested.

Confidentiality is essential. Diagnosis certificates may contain sensitive health information, including physical or mental health conditions, pregnancy information, infectious disease details, injuries, medications, treatments, disability-related statements, and hospital numbers. These records should be handled carefully and shared only with the intended receiving institution or professional service provider. A certified translation should be faithful and complete, but it does not remove the need to protect privacy. Clients should avoid sending unnecessary copies or unclear screenshots where a secure, complete PDF is available.

Medical certificates and diagnosis certificates from Mainland China, Taiwan, Hong Kong, and Macau may be translated for many purposes in Canada, including employment leave, insurance claims, immigration files, disability accommodation, school absence, medical referrals, legal proceedings, accident claims, benefits administration, travel insurance, and personal records. A certified translation helps Canadian readers understand the Chinese or bilingual document, but it does not provide medical advice, legal advice, insurance advice, immigration advice, or employment advice. It does not verify the diagnosis, assess disability, determine entitlement to benefits, or guarantee acceptance by a receiving institution. Those decisions belong to doctors, insurers, employers, schools, government authorities, lawyers, or other reviewers.

A well-prepared certified translation of a medical certificate or diagnosis certificate should identify the document clearly, preserve the patient’s name and identity information, translate the medical institution and issuing department accurately, reproduce diagnosis wording carefully, distinguish diagnosis from recommendation, preserve consultation dates, treatment dates, hospitalization dates, issue dates, and sick leave periods, transcribe doctor names and document numbers where visible, and note seals, signatures, QR codes, electronic verification features, or official remarks where appropriate. Because diagnosis certificates may affect employment, insurance, immigration, school, legal, medical, and benefits matters, accuracy, confidentiality, and completeness are essential. When translated properly, they allow Canadian institutions to understand the medical information shown in the original document while respecting both the content and the limits of the certificate.

Related Documents: Medical Record, Vaccination Certificate, X-Ray Report, Medical Examination & Laboratory Report

Important Notice:

This article is prepared based on current publicly available information and practical experience, and is intended for general guidance only. Requirements may vary depending on the application type and receiving institution. The final determination is made by the relevant authority. It is recommended to confirm specific document and translation requirements with the receiving institution before submission to ensure acceptance.