I am searching for medical visa. Can you help me. I have invitation letter from China .

Khaled, you can apply for an S2 type to China for medical issues. You need to provide your passport and copy of its data page, the filled-out application form attached with a passport-sized color photo, a diagnosis certificate from Chinese medical, flight itinerary, and bank savings account. After, submit the application to the embassy of China to apply for the S2 type.