With the promulgation of the national two-child birth policy, many senior mothers are excited to plan for a second child. As soon as the second child policy was liberalized, I received a lot of calls from people who said they had no experience raising their first child when they were young, but now they have experience and conditions, and the state has a policy, and their children have grown up, some are in high school and some are in college, so their busy lives have suddenly become cooler, so they are thinking about having another child. The number of middle-aged mothers who have such thoughts is not small. As the years accumulate, mothers have experience and have accumulated a lot of knowledge about parenting, but they do not know that once they pass the age of 35, the physiological functions of the body will be significantly reduced, chromosomal abnormalities and the chances of having a deformed child will gradually increase. There are many pregnant women who are over 40 years old. The ovaries, which produce eggs, are slowly aging and the quality of eggs is slowly declining. What do older women need to check before having a second child? First, the general condition of the first comprehensive understanding of women’s health, including nutrition, development, the presence of anemia, hypertension, nephritis, hepatitis, diabetes, etc.. It is very important to know whether there are any basic diseases for the management of the whole pregnancy in the future, which can reduce the complications during pregnancy, such as hypertensive diseases in pregnancy and gestational diabetes, etc. Checking the reproductive system Mothers-to-be need to go to the gynecology department for routine white belt examination to screen for trichomonas, mycobacteria, mycoplasma chlamydia, vaginal inflammation, and sexually transmitted diseases such as gonorrhea and syphilis; cervical cytology examination to exclude cervical lesions; ultrasound to understand the size of the uterus, thickness of the endometrium and the condition of the ovaries and fallopian tubes. For women who have been infertile for many years, a hysterosalpingogram is needed to find out if the fallopian tubes are open. These tests can be performed after menstruation. Avoid vaginal medication, douching and sexual intercourse for 2 to 3 days before the test. Secondly, blood test for ovarian hormones to understand whether the ovaries are functioning normally, usually on the 2nd to 4th day of menstruation, preferably on the 3rd day of menstruation. 3. Necessary blood tests 1. TORCH refers to a group of pathogens: To, Toxoplasma gondii, R, rubella virus, C, cytomegalovirus, H, herpes simplex virus. Since 60% to 70% of women are likely to be infected with rubella virus, once infected, especially in the first trimester, it can cause miscarriage and fetal malformation. Therefore, it is recommended to check TORCH in the first trimester, and if the IgM antibody is positive, you need to wait for it to turn negative before getting pregnant. 2. Blood group test: It can help us to know whether there is a possibility of mother-child blood group incompatibility. If the woman’s blood type is O and the husband’s blood type is A or B, or if the pregnant woman is Rh negative, anti-A, anti-B and anti-D antibody titers should be measured to avoid neonatal hemolytic disease. 3, other: liver and kidney function, blood routine, urine routine, blood glucose and lipids, and four infectious diseases (hepatitis B, hepatitis C, syphilis, AIDS), etc. Oral examination This is often neglected by most people, because the blood transport is rich in estrogen during pregnancy, which is likely to cause gum swelling and bleeding, toothache, etc. The treatment is very tricky, and we have encountered several pregnant women with periodontal tumor bleeding during pregnancy, resulting in severe anemia and fetal death in utero. Although the ideal age for childbirth is around 25-30 years old, older mothers can still give birth to smart and healthy babies with rigorous preconception counseling and good pregnancy management. In addition, it is recommended to start taking folic acid tablets at 0.4 mg per day 3 months before conception, stay away from alcohol, cigarettes, coffee, etc., and insist on proper daily exercise, as well as asking your husband to exercise together to improve your physical fitness to ensure the quality of sperm.