The health certificate costs about 100 yuan, mainly for the catering industry service personnel, pharmaceutical industry, water industry or beauty service workers, health certificate need to bring their ID card to the hospital check-up center or health management center for processing. Usually the medical examination items of the health certificate include hepatitis B surface antigen, ghrelin, frontal and lateral chest films, internal medicine, surgery, stool culture, etc. The frontal and lateral chest films mainly check for active tuberculosis. Stool culture is mainly to check whether there is positive bacteria such as typhoid, cholera and paratyphoid, and whether there is intestinal virulent infectious disease. It usually takes 3 working days to apply for a health certificate, and after 3 working days, if there are no special circumstances, you can get a health certificate.