How about the health certificate in Baiyin City, Gansu Province?
When you go to the Municipal People's Hospital, first explain at the registration office that you want to apply for a health certificate, and they will arrange for you to go to the corresponding department for physical examination. If it is not a serious illness, you can generally get a health certificate, and blood tests are necessary. If you work in that unit, it will be easier for the person in charge of that unit to do it for you.