With the liberalization of the single two-child policy, many women over the age of 35 are consulting on the issue of re-birth, and the unified response is as follows: 1, women over the age of 35 need to know that their chances of conception are significantly lower than those of the younger age group, and women over the age of 40 have only a 1/100 chance of conception per menstrual cycle. If you are actively trying for 6 months and still not pregnant, a more active approach is to consult a reproductive medicine specialist and receive necessary medical counseling and help. Zhang Yu, Department of Gynecology, Peking Union Medical College Hospital 2, For women with regular menstruation, maintaining a regular sex life (2-3 times/week) from the time of the last clean period can help increase the chance of conception. The 6 days before ovulation is medically defined as the “conception window”, and if you can maintain a frequent sexual intercourse within these 6 days/1-2 days, you will have the best chance to conceive. If sex is not so frequent, or if the couple lives in two places or one of them travels a lot, it is recommended to master some methods to predict ovulation, such as taking basal body temperature and using ovulation test strips, which will help to improve the conception rate. 3, If conditions allow, both partners should have a comprehensive medical examination including preconception checkup. Obstetrics and gynecology should include: gynecological examination, cervical cytology screening (currently mainly TCT), ultrasound of the uterus and both adnexa. If financial conditions allow, screening for high-risk HPV is also recommended. 4, Take one 0.4mg of folic acid daily starting three months prior to planned pregnancy until 3 months after successful conception. If you have an unplanned pregnancy and do not take folic acid in advance, you should not overly panic and start taking it in time as long as you are not extremely paranoid or severely malnourished. 5, Once you have successfully conceived, you should have prenatal checkups as early as possible. Pregnancies in women over 35 years old are medically known as high-risk pregnancies, with an increased risk of delivering a fetus with chromosomal abnormalities/abnormalities, and prenatal checkups should be performed before the third trimester to give your doctor sufficient time to provide you with prenatal diagnosis (e.g. NT measurement at 12 weeks, or chorionic villus biopsy, Down’s syndrome screening between 16-20 weeks and necessary (Amniocentesis for early detection of chromosomal abnormalities in the fetus). 6, Healthy diet and regular routine need not be stressed anymore, if you can do it, it is a lifelong habit that we should try to do whether we have children or not. For example, avoid smoking, excessive alcohol consumption (more than twice a day), excessive coffee (more than 250mg of caffeine intake per day), drug use, exposure to poisons or harmful chemicals. 7. Regarding the mode of delivery: Advanced age is not an absolute indication for a cesarean delivery. If you have a normal delivery with your first child, the delivery of your second child will be much easier than the first one. Author: Dr. Zhang Yu, Associate Professor, Department of Obstetrics and Gynecology, Peking Union Medical College Hospital Sina Weibo: @协和张羽疾病咨询请登录网站： style=”text-align:left;”>”Only Doctors Know” series of books available at major bookstores Dangdang, Jingdong, Amazon, Taobao.com The above information is partly from the committee comments of the 2013 ASRM upgrade, replacing the 2008 version. Welcome to keep following the public WeChat subscription number of Dr. Zhang Yu, Associate Professor of Obstetrics and Gynecology at Peking Union Medical College Hospital, which will continue to publish popular knowledge on women’s health.