Door-to-door physical examination refers to the health examination of the service population within the jurisdiction, mainly those who have service needs and abnormal behavior, including blood pressure, blood sugar, liver and kidney function, blood lipid, B-ultrasound, electrocardiogram and so on. The entry physical examination is to check the physical condition after passing the recruitment examination. Mainly biochemical examination, B-ultrasound, chest X-ray, infectious diseases, electrocardiogram.