Are medical insurance and social security paid together?

According to the query method, medical insurance refers to employee medical insurance, which was originally included in social security. Workers must pay together when they are employed by their employers. It refers to the medical insurance for employees, but the employment of workers is flexible, and workers can only pay their own pension insurance or medical insurance. Refers to the basic medical insurance for urban residents or the new rural cooperative medical system, which does not need to be paid together with employee social security.