1. How old is too old to have a baby? There is no absolute age of fertility, of course, the younger you are, the greater the chance of childbirth, from a physiological point of view, the best age for women to give birth is between 20 and 25 years old. During this period, women’s reproductive functions are at their best and their bodies have fully developed and reached their peak. Before the age of 20, the psychological impact of pregnancy is more obvious than the physiological, and from the age of 30 women’s fertility begins to decline, from the initial downward trend is relatively gentle to the trend after the age of 35 is obvious, after the age of 40, women’s fertility has been significantly reduced, but at this time is not equal to zero, think about the old family to have several children, the mother’s age of 40 or more when the birth of the old end is It is very common to have mothers who are over 40 years old. So age is not an absolute issue, it is possible if you want it. A study has shown that the rate of women who have the desire to have children at the age of more than 30 years to get pregnant within one year is 75%; by the age of 35, the above figure drops to 66%; at the age of 40, the rate is only 44%; and by the age of 45, pregnancy has become very difficult. 2.What are the different tests that need to be done in advance? If you are usually healthy, there is no need to do any special examination before pregnancy, a normal medical examination to understand the general state of the body is enough. Of course, because the function of the ovaries is declining when you are older than when you are younger, regular menstruation does not necessarily mean that you will have ovulation. If you want to know the reserve function of your ovaries before you get pregnant, you can also go to the hospital and have your hormone levels tested. The first two are not commonly carried out in hospitals, but the third one can be tested in general obstetrics and gynecology hospitals. 3.What kind of tests does the male partner need? If there are not more than 3 early miscarriages (also known as habitual miscarriages), generally speaking, men do not need to undergo special tests. If there are more than 3 miscarriages, men should consider having a chromosome test to find out if there are any chromosomal abnormalities. 4. What if there are other diseases? Some diseases, such as thyroid disease, diabetes, heart disease, etc., need to be adjusted accordingly before pregnancy, and if pregnancy is rushed before the disease is controlled, the chances of various pregnancy complications and malformations will increase. Therefore, if you have some combined diseases before pregnancy, you need to consult. 5. What if there is a deformity or anomaly in the first child? It is also necessary to seek professional help from a doctor to find the cause of the deformity, some problems can be avoided when trying to conceive again, but if there is a genetic abnormality, it is necessary to screen and eliminate the problematic embryos through prenatal diagnosis methods. 6, how long after the release of contraception can be pregnant? This is related to the way of contraception. If it is oral contraceptive pill contraception, used to emphasize is to contraceptive 3 months after conception, but the most years of research evidence have confirmed that there is no need, can stop taking oral contraceptives after the next month on pregnancy. If the intrauterine device contraception, after the removal is also in the next period after trying to get pregnant. 7, if you try for a period of time can not get pregnant how? As mentioned earlier, the older you are, the lower the fertility, if after a period of time trying, still infertile, if necessary, also need to demand the help of a doctor, generally speaking, the doctor will be trying to get pregnant after a year unsuccessful party to carry out some of the necessary tests, of course, ultrasound, ovulation monitoring, male sperm testing these non-invasive tests are available in advance to check. If a woman is too old and her ovulation function has been lost, there is another way to use other people’s eggs for egg supply, which is fertilized in vitro and then transplanted back into the body, but at this time, biologically speaking, the child’s genes are not inherited from you. 8. What are the different risks faced during pregnancy in advanced age? The older a woman is, the poorer the quality of her egg cells and the greater the likelihood of carrying abnormal chromosomes after fertilization. Once a woman reaches the mid-30s, her risk of having a child with a congenital malformation increases. A congenital abnormality is a disorder or disorder of function that is present at birth. In most cases, this is due to an excessive number or deletion of a specific chromosome. A trisomy occurs when there are 3 of the same chromosome instead of the normal 2. The most common form is Down syndrome, or trisomy 21, in which such a patient has three chromosome 21s. The latest fetal non-invasive DNA technology has been developed in recent years, and although it cannot replace amniocentesis, it can help doctors to a large extent to It is not a substitute for amniocentesis, but it can help doctors to determine the presence of fetal chromosomal abnormalities to a large extent. At the same time, studies have shown that if both men and women are older than 35 years, the age of the man also has an impact on the above-mentioned risks and increases the chance that the fetus will suffer from certain congenital defects, which are the most common cause of miscarriage and are more likely to occur in women older than 35 years. Therefore, the chance of miscarriage increases when the couple is older than when they are younger. According to statistics, there is a 15% chance of miscarriage during early pregnancy. 9.What are the precautions during pregnancy? The incidence of some pregnancy complications such as gestational diabetes and gestational hypertension is increased compared to younger pregnant women, which means that more rigorous prenatal checkups are needed during pregnancy. If there were comorbidities in the previous pregnancy, there is also a risk that they will reoccur in the current pregnancy, all of which require professional medical advice. But still be wary of a phenomenon that is common among Chinese people who attach excessive importance to pregnancy, because they are pregnant, they are afraid to exercise and eat and drink more, as I pointed out in another science article, what we should be wary of now during pregnancy is over nutrition and oversized children and bad deliveries. 10. Must I have a baby by cesarean section when I am older? Age is not an absolute indication for cesarean delivery, as long as there are conditions, you can try natural delivery, but weight management during pregnancy is very important, avoid over nutrition and moderate exercise is the key. 11.I had a cesarean section last time, can I still give birth by myself this time? If the previous pregnancy was a cesarean delivery, is it necessary to have a cesarean delivery? If the previous cesarean section is some factors that cannot be removed in this pregnancy, such as pelvic abnormality, then another cesarean section is needed, otherwise it is also a good idea to try VBAC (vaginal birth after Cesarean section), but whether it is appropriate or not needs professional assessment by a doctor.