Before preparing for pregnancy, check gynecological routine, leukorrhea routine, liver function, kidney function, blood routine, urine routine, cervical exfoliative cell screening, as well as blood pressure, blood glucose, electrocardiogram, thyroid function, Hepatitis B virus, AIDS, syphilis spirochete, abdominal ultrasonography, and teeth. Some women who have given birth to congenitally deformed babies or who have had repeated spontaneous abortions need to be checked for semen routine and chromosomes. Those who have irregular menstruation and are heavier can check their sex hormone levels and ultrasound to measure ovulation and rule out polycystic ovary syndrome. Pre-conception examination has a very important significance: 1, the body’s initial understanding of whether it is suitable for pregnancy. 2, early detection of disease, treatment before pregnancy. 3, if there are factors affecting pregnancy, need to be treated in advance. If the test is not abnormal, you can take oral folic acid to start preparing for pregnancy. If the test result is abnormal, consult your doctor whether to treat it and whether you can get pregnant.