Generally speaking, the normal medical checkups do not include HIV tests. General physical examination items mainly include blood routine, biochemistry, liver function, kidney function, blood sugar, blood lipid, urine routine, stool routine, electrocardiogram, chest X-ray, etc., and do not include HIV testing. Only patients with special requirements or special positions in the medical examination program may include HIV antibody testing in the medical examination program, and some special industries will directly include HIV testing in the medical examination requirements. In addition, premarital examinations are generally more comprehensive and include testing for legal infectious diseases, such as AIDS, syphilis, hepatitis B, etc. HIV testing requires testing for HIV antibodies in the body, and if the antibodies are positive to confirm an AIDS diagnosis. If the test result is positive at a medical examination center, the patient usually needs to have another blood draw and then the blood sample needs to be sent to the local CDC for testing and confirmation. Therefore, it is recommended that patients who want to be tested for AIDS can apply directly to the CDC. Due to the special nature of AIDS, the CDCs in different parts of China now offer free HIV testing to local residents, so HIV testing at the CDCs is free of charge. In addition, the CDC will protect the privacy of the patient and will not make the test results public. If the test result is positive and AIDS is diagnosed, the CDC will create a file for the patient, provide free medication, and follow-up free tests, and will track the treatment of the disease.