Macao labor health certificate examines major diseases and infectious diseases. According to relevant information and health certificate, check whether there is active pulmonary tuberculosis on chest film. Blood tests show that liver function, alanine aminotransferase and alanine aminotransferase have increased significantly. When there is a significant increase, we should check hepatitis A antibody, hepatitis C antibody, hepatitis E antibody and hepatitis B to further clarify whether there is a problem of viral hepatitis. The examination items of health certificate also include stool culture and whether there are bacterial infections such as typhoid Bacillus, Vibrio cholerae and paratyphoid Bacillus. There is also an examination item in the health certificate, which is the examination of internal medicine and surgery. Internal medicine is to measure blood pressure, auscultate the heart and lungs, palpate the liver and spleen, ask about the family history of hereditary diseases, check the height and weight by surgery, and check whether the spine, limbs and joints are deformed.