Different hospitals have different department settings, some hospitals hang obstetrics throughout pregnancy, some hospitals hang gynecology in early pregnancy and obstetrics in middle and late pregnancy: 1, early pregnancy: that is, before 12 weeks of pregnancy, pregnant women can go to obstetrics or gynecology for early pregnancy checkups, such as urine HCG, ultrasound of uterine adnexa, etc. If pregnant women have combined gynecological diseases, such as gynecological inflammation, tumors, etc., they need to hang gynecology for checkups; 2, late pregnancy: at this time, pregnant women need to go to obstetrics and gynecology for checkups. The first maternal health handbook and file should be established during the first maternity checkup. At the same time, other examinations are needed, such as routine blood tests, including white blood cells, red blood cells, platelets, blood type, etc., as well as routine urine, ultrasound, liver and kidney function, thyroid function and other tests. In late pregnancy, attention should be paid to fetal detoxification, fetal heart monitoring and other examinations. The main purpose of pregnancy checkups is to observe the health condition of pregnant women and the growth and development of the fetus at each stage. In addition to health checkups, maternity checkups also include pregnancy health care, health education guidance, nutrition guidance, weight management and medication guidance. The checkups are conducted once every 4 weeks in early and middle pregnancy, once every 2 weeks after 28 weeks, and once a week after 36 weeks. If abnormalities occur during the maternity checkup, the number of checkups may need to be increased appropriately to ensure the health of the pregnant woman as well as the fetus.