The couple is ready to have a child, so what tests should be done before pregnancy? The common tests include: 1. basic tests reflecting the health status of the body: routine blood, urine, blood sugar, blood pressure, blood lipids, electrocardiogram, etc. 2. tests reflecting the health of the reproductive system: ultrasound examination of the reproductive system for both men and women, sex hormone six tests and routine laboratory tests of the white belt for women. 3. The male will have a routine semen test. 3. Infectious factors that may affect pregnancy and fetal development: cytomegalovirus, EBV, toxoplasmosis, hepatitis B virus, syphilis spirochetes, HIV, etc. 4. Tests related to hereditary diseases: chromosome examination for both parties.