Yes, health or medical insurance is mandatory for a Turkey work visa. Health insurance is required to cover medical expenses during your stay in Turkey. It ensures that you have access to healthcare services if you fall sick or have an emergency. Some employers provide health insurance as part of the job benefits, while others may ask employees to arrange it themselves. Proof of valid health insurance is usually required during the visa or residence permit process. Having insurance helps protect you financially and supports your legal stay in Turkey.