The health certificate is mainly to check for major diseases and infectious diseases, such as frontal and lateral chest radiographs to check for active tuberculosis; blood tests to see if there is any significant elevation in glutathione aminotransferase in liver function, and if it is significantly elevated, to check for hepatitis A antibody, hepatitis C antibody, hepatitis E antibody, hepatitis B five, to further clarify whether there is any viral hepatitis; The health certificate also includes a stool culture to check for bacterial infections such as S. typhi, Vibrio cholerae, and S. paratyphi. There are also medical and surgical examinations for the health certificate. The medical examination is to measure blood pressure, listen to the heart and lungs, palpate the liver and spleen, and inquire about family history of genetic diseases, while the surgical examination is to check height and weight, as well as the spine, limbs and joints for deformities.