Pregnancy requires a comprehensive physical examination, an obstetric examination, necessary auxiliary tests and health education and guidance. The most important part of pregnancy is prenatal examination, which is an important measure to reduce the incidence of maternal and perinatal complications and mortality, and to minimize birth defects. Generally speaking, prenatal examination includes detailed medical history, comprehensive physical examination, obstetric examination, necessary auxiliary examinations and health education and guidance. The medical history generally includes age, occupation, previous pregnancies, estimation of the probable due date, and knowledge of previous menstrual history and pregnancy history. Physical examination generally includes checking the vital signs of the pregnant woman, the development of the fetus, and the nutritional and mental status of the pregnant woman. In particular, blood pressure, breasts, weight, and the presence or absence of edema are examined. Obstetric examination includes abdominal examination, pelvic measurement, extra-pelvic measurement, etc. Vaginal examination includes checking whether there is vaginal bleeding and whether there is abnormal vaginal discharge. Vaginal examination, such as checking for vaginal bleeding and abnormal vaginal discharge, etc. Vaginal examination is also performed before delivery to determine the size of the pelvis, the cervical capacity and the degree of cervical opening, in order to determine whether or not labor can be accomplished. After pregnancy, prenatal checkups should be performed as prescribed by the doctor to ensure eugenics.