Since the full liberalization of the two-child policy, there has been an immediate increase in the number of women coming to the obstetrics and gynecology clinic for consultations on having another baby. Among these people who come for consultation, two conditions are the most common: women of advanced age (>35 years old) and women who have had a cesarean delivery. I. Problems of advanced age: In medical terms, a pregnant woman who is over 35 years old is called an advanced pregnant woman. 1. Infertility. According to statistics, the fertility of a 35-year-old woman is only half of that of a 25-year-old woman, and at age 40 it is only half of that of a 35-year-old woman. Therefore, it is conceivable that when senior women are ready to get pregnant, the first thing they may encounter is the problem of infertility, and it may be a long process just to conceive a child. 2. Malformation. When you get pregnant after the age of 35, the risk of several of the most common chromosomal abnormalities occurring in the fetus increases. According to statistics, the incidence of just one malformation, trisomy 21, is 5% in women who become pregnant at the age of 45. 3. Complications during pregnancy. After the age of 35, the risk of various common complications during pregnancy and childbirth rises, such as gestational diabetes, hypertensive disorders during pregnancy, placenta praevia, postpartum hemorrhage, and the risk of developing these conditions reaches its highest value after the age of 35. 4. Premature birth. In addition to malformations, the risk of miscarriage, premature birth, and intrauterine growth restriction is also increased. Second, senior mothers-to-be should pay attention to: 1, need to ensure comprehensive and balanced nutrition, pay attention to eat more fresh fruits, vegetables, eggs, milk and other foods rich in high-quality protein, less spicy and stimulating food, and from the first three months of pregnancy to supplement folic acid, taking folic acid can avoid neurological developmental diseases. 2, develop good habits, quit smoking and drinking, do not stay up late, work and rest regularly, and pay attention to the combination of work and rest. 3, avoid sedentary, sitting still for a long time is very unfavorable to the blood circulation in the pelvis, it is recommended that in the work can often stand up and walk or maintain appropriate exercise. 4, computers, cell phones, microwave ovens, TVs, refrigerators and other electrical appliances have different degrees of radiation, if women are pregnant, should avoid staying in front of these appliances for a long time. It is also recommended that if there is a plan to have children, it is best not to decorate at the same time. 5, maintain a calm state of mind, soothing emotions, avoid excessive mental tension and stress, all the usual view. The problems caused by cesarean section: 1, pregnancy at the uterine scar. This is a special type of ectopic pregnancy, that is, although the fertilized egg is laid inside the uterus and does not run outside, the degree of danger is greater. Since the cesarean incision is usually in the lower part of the uterus, this area is very thin and scarred, just like barren land, it is difficult to grow good crops and it is difficult for the embryo to develop healthily here. In case the embryo lands here, it needs to keep rooting deeper and deeper in order to get enough nutrients, so the embryo can easily break through the uterine wall and cause severe hemorrhage. Note: When a woman who has had a cesarean delivery becomes pregnant again, it is best to have an ultrasound examination in early pregnancy to rule out a pregnancy at the scar. If once found, it is better to be hospitalized immediately. 2. Placenta praevia and placental implantation. Cesarean delivery is an important high-risk factor for the occurrence of placenta praevia, and the more cesarean deliveries done, the greater the risk of placenta praevia, which is more likely to implant and can even penetrate the uterus and implant into the bladder. Placenta praevia is when the placenta is positioned in front of the baby, and as the uterus grows in size, the lower segment, or placenta, is stretched and misalignment occurs between the placenta and the uterine wall, resulting in vaginal bleeding. Note: For women with scarred uterus who are pregnant again, don’t feel that the process of the first pregnancy went well and take the second one lightly. Ultrasound in the middle and late stages of pregnancy should not be missing; and you should pay more attention to it, if you have vaginal bleeding in late pregnancy, you should pay attention to it and go to the hospital in time. 3.Uterine rupture. Uterine rupture is the most worrying problem for women with scarred uterus when they are pregnant with their second child. The scars left during the cesarean section of the first child may limit the elongation of the lower part of the uterus and be stretched thinner and thinner during the second child, which may lead to uterine rupture. Statistically, patients with ruptured uterus have a perinatal mortality rate of over 50% and a maternal mortality rate of 10% to 40%. Note: With the accumulation of medical information, doctors have found that even if you had a previous cesarean section, you do not necessarily have a ruptured uterus when you get pregnant again, and many people even have successful vaginal deliveries. The risk of uterine rupture can be controlled to 1% if the scarred uterus is pregnant again, if the pregnancy is well monitored, regular check-ups are followed and the appropriate delivery method is chosen. Uterine rupture is the biggest concern for women with scarred uterus when they are pregnant with their second child. The scar left during the cesarean delivery of the first child may limit the elongation of the lower segment of the uterus and be stretched thinner and thinner during the second child, which may lead to uterine rupture. According to statistics, patients with ruptured uterus have a perinatal mortality rate of over 50% and a maternal mortality rate of 10% to 40%. As a reminder: with the accumulation of medical information, doctors have found that even if you had a previous cesarean section, you will not necessarily have a ruptured uterus when you get pregnant again, and many of them even have successful vaginal deliveries. The risk of uterine rupture can be controlled to 1% if the scarred uterus is pregnant again, if the pregnancy is well monitored, regular check-ups are done according to the doctor’s prescription and the appropriate delivery method is chosen.