Medical Translation: Key Challenges and Why Accuracy Is Critical

The outbreaks of global pandemics, like COVID-19, show us how important international communication in healthcare is for today’s society. Thanks to medical translation, we can now receive quality medical care in any part of the world, access newly discovered medicines and treatments as soon as possible, and unite our efforts to improve quality of life across the globe.
Let’s explore together what medical translation consists of and what challenges medical translators usually face while translating healthcare-related information. We are also going to find out in which cases certified medical translation is needed and why accuracy is vital when translating medical texts.
What is medical translation?
Medical translation is the translation of medical, pharmaceutical, and healthcare materials that maintains all terminological and stylistic requirements.
Being by far one of the most difficult types of translation services, it requires excellent knowledge of the source and target languages, as well as specific medical terminology and strong competence in medical sciences.
It includes the accurate adaptation of highly specialized source texts for doctors, patients, and regulators, placing enormous responsibility on translators because even the slightest mistake can have a major impact on people’s health and lives.
Medical translation services: what they usually include
Medical translators deal with a variety of medical materials used in healthcare services, pharmaceutical development, clinical trials, etc.
They have to understand the objective of the text, the field of medicine it concerns, and the audience it is intended for in order to choose the correct adaptation approach.
For example, information designed for doctors and medical professionals must contain all the specific terminology and remain precise. Medical translations for patients may be simplified to help them understand all the necessary information.
Also, different types of medical materials, such as clinical, regulatory, marketing, and technical texts, are translated using different translation strategies, tones, styles, and terminology.
Translating medical documents
Medical documents may need to be translated either for personal use when traveling, seeking medical assistance abroad, participating in clinical trials, or applying for visas or permits, or for enterprises that provide healthcare services or produce pharmaceuticals or medical devices. Some common types of documents requiring translation in the industry are:
- Patient medical histories
- Medical reports and records
- Medical certificates
- Prescriptions
- Death certificates
- Pharmaceutical instructions
- Medical device instructions
- Clinical protocols
Translating medical reports and records
The translation of medical reports and records must be handled with care because even insignificant mistakes can lead to misdiagnosis or serious medical errors.
When working with sensitive personal data such as medical records, lab results, diagnoses, prescriptions, and vaccination records, translators must follow all necessary confidentiality requirements to guarantee patient safety.
Why accuracy is critical in medical translation
The main reason why accuracy plays an important role in medical translation is that errors such as misinterpreted dosages, wrong diagnoses, or incorrect instructions may cause physical harm or death, not just misunderstandings or financial loss.
Medical terminology, abbreviations, and eponyms
Medical texts are usually full of technical terms and specific phrases. Since many terms may sound similar, especially when their functions or purposes are closely related, translators must be extremely careful to avoid clinical misinterpretations or serious errors.
In order to achieve accuracy, translators use specialized dictionaries and often maintain consistent medical glossaries.
For example, an electrocardiogram and an echocardiogram are both used in cardiology to identify possible heart issues, but the first shows the electrical activity of the heart, while the second produces an image of it.
Acronyms and abbreviations are both widely used in medical texts and can be ambiguous, so they must be translated according to the context, like PE, which can mean pulmonary embolism or physical examination.
An eponym is a term meaning that something was named after a person, like Alzheimer’s disease or the Braille system. Eponyms pose another difficulty for translators because they may first need to translate or transliterate the person’s name, which may originate from another language.
Legal, ethical, and patient safety risks
When translating medical materials, translators must also follow confidentiality protocols to prevent violations of patient privacy rights and ensure compliance with legal and regulatory requirements, including GDPR (European data protection regulations) and HIPAA (standards for patient information protection).
Failure to do so may cause document rejection, malpractice lawsuits, delayed drug approvals, fines, and the loss of medical licenses for clinics and manufacturers.
Certified medical translation: when it is required
A certified translation is produced by a qualified linguist and accompanied by their signature and a formal statement confirming that the text is accurate and complete. In some cases, a translation also has to be certified by a relevant government authority, notarized, or signed by a sworn translator.
It is usually required for legal reasons, for example:
- Visa applications and other immigration procedures
- Submission to government bodies (e.g., FDA, EMA)
- Conducting clinical trials
- Insurance claims
- Court proceedings
- Employment abroad
- Admission to foreign universities
Professional medical translation workflow
Both medical translation and interpretation require preparation of the text to be translated, as well as familiarization with the available materials and the client’s requirements.
Like any other type of translation, medical translation usually consists of three stages executed by independent linguists, known as the TEP process:
- Translation—the translation itself.
- Editing—checking the accuracy of the text by comparing it to the original and correcting mistakes that the translator may have overlooked.
- Proofreading—the final stage of translation, consisting of reviewing the text for readability, typos, and other errors.
However, the workflow, the number of translators, and the involvement of other specialists, including subject-matter experts (SMEs), may vary according to the client’s needs or the type of text.
Subject-matter review and quality control
Involving a healthcare professional, a bilingual physician, or an industry subject-matter expert to perform a professional review of the translated text is common practice in medical translation.
This is especially important when dealing with highly technical or scientific materials that require deep subject expertise and when qualified medical translators are not available.
A subject-matter review ensures clarity, compliance, and terminological accuracy in high-stakes content.
Translation in healthcare: common use cases

In today’s globalized environment, not only have international trips become routine, but opportunities to receive high-quality healthcare services worldwide have also increased greatly. Some reasons why you may need medical translation in healthcare include:
- Having health issues while traveling
- Seeking medical treatment abroad
- Using remote medical consultations
- Applying for visas or residency permits
- Conducting multicountry clinical trials
- Communicating with health insurance companies
- Receiving accreditation for medical professionals
- Repatriating the deceased
Features of medical translation
Medical translation is characterized by:
- A formal, objective, and precise tone
- Long sentences and complex syntactic structures
- Terminology from medicine, chemistry, and other scientific fields
- Medical jargon
- A high density of loanwords from Greek and Latin
- Analytical, statistical, and numerical data, as well as infographics
Problems of medical translation and how to avoid them
Common challenges translators encounter when translating medical texts include:
- Highly specialized language
- Ambiguous acronyms and abbreviations
- Differences between the healthcare systems of the source and target countries
- Differences in the terminological systems of the source and target languages
- Differences in the history of medical development across regions
- Outdated medical dictionaries
- The absence of medical dictionaries for certain language pairs
Some possible solutions include:
- Providing continuous education for linguists
- Collaborating with subject-matter experts
- Maintaining terminological glossaries
- Creating and updating bilingual dictionaries
- Introducing automated Language Quality Assurance (LQA) tools
How to choose a medical translation provider
There are several different approaches to choosing a provider of professional translation services. For example, if you only need a one-time translation, you can hire a freelance translator. On the other hand, for more complex and long-term projects, the best option is to collaborate with a translation agency. However, the best translation partner should:
- Be a local agency with native-speaking specialists
- Have expert translators with competence in medical translation or even in a specific niche (e.g., oncology or cardiology)
- Possess certifications such as ISO 17100 (translation services) and ISO 13485 (medical devices)
- Have proven experience working on similar projects or with similar companies
- Use modern CAT and TMS systems
- Ensure all necessary review and QA steps
Questions to ask before starting a project
Some questions that can help you determine whether a translation service provider has expertise in medical translation are:
- Do your translators have medical degrees or healthcare backgrounds?
- Do you have the necessary certifications that guarantee the quality of your translations?
- Is subject-matter review part of your translation process?
- How do you guarantee patient confidentiality and regulatory compliance?
- Do you have experience working on similar projects or with similar companies?