Can a health certificate detect cancer?

I can't. According to the query doctor network display. The main purpose of health certificate is to check whether there are infectious diseases and whether physical health affects the type of work. The contents to be checked in health certificate are different from the nature of work, but it does not include cancer screening items. Cancer needs careful screening to be found. Clinically, cancer is generally screened by imaging examination, tumor markers and endoscopy. The specific examination items need to be determined by the doctor in combination with the patient's actual situation and past medical history.