What medical exam do foreigners need in Thailand in 2026?

Non-Immigrant extension appointments at Immigration Division offices commonly include a medical certificate on the downloadable checklist, especially for year-long extensions tied to retirement, marriage, or employment categories. Non-Immigrant O-A and O-X retirement routes reference medical screening as part of the long-stay bundle alongside insurance and financial proof; see retiring in Thailand for how that package fits housing and budget planning.

Work permit and extension workflows through Bangkok Metropolitan Immigration and provincial offices often expect the same Thai hospital form within the validity window printed on the template (many offices treat 30 days as the safe range unless the officer publishes otherwise). LTR applicants follow BOI and Immigration medical steps in the online portal instructions.

Tourists on short exempt entries usually skip this exam until they convert to a long-stay category inside Thailand or apply abroad for a qualifying visa.

Licensed hospitals and clinics in Bangkok, Chiang Mai, Phuket, and other provinces issue bilingual or English forms that mirror Immigration’s disease list. Officers look for declarations on active tuberculosis, leprosy, syphilis, drug addiction, alcoholism, and elephantiasis (filariasis), among the conditions named on standard templates. The visit is usually a physician interview, vital signs, and chest imaging or blood tests when the doctor orders them to sign the form honestly.

This document is not the Department of Livestock Development pet health certificate used for dogs and cats. It is also not the same as an employer fitness exam unless your company adds its own occupational health rules.

Hospitals near major Immigration offices (including Chaeng Watthana in Bangkok and regional centres such as Chiang Mai and Phuket) run daily “Immigration medical” queues. Ask for the current Immigration template version so the officer does not reject an outdated layout.

Book the hospital appointment before you queue for apply for residence or a future extend your stay slot so the certificate date remains valid. Bring passport, recent photos if the clinic asks, and glasses or medication lists for chronic conditions you already declared on visa forms.

Pay cash or claim through private insurance; SSO Section 33 generally does not cover Immigration paperwork visits unless your employer policy says otherwise. Keep the original certificate and a copy for the Immigration officer.

If a condition appears on the form, ask the hospital and an immigration lawyer about treatment proof before you assume automatic denial. Officers apply Thai Public Health and Immigration rules, not foreign GP letterhead alone.