Do I have to have a medical insurance card to buy social security?

Social security is not a medical insurance card. Social security card has the function of medical insurance card. At present, the social security card widely promoted in China covers medical insurance cards and financial functions. Citizens can use social security cards for medical treatment, medical insurance settlement and hospitalization. Simply put, the social security card is not a medical insurance card, but it can be used as a medical insurance card. Therefore, people who hold social security cards do not need to apply for medical insurance cards.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.