It is customary to refer to a woman’s inability to conceive as infertility, and to refer to the male partner’s cause of his partner’s infertility as infertility. In our country, infertility is defined as a woman who has lived together as a couple for 2 years after marriage, whose spouse has normal reproductive function and does not conceive without contraception, or who has conceived, without contraception, and both partners stop conceiving after 2 years is called infertile. In the United States, the time is set at 1 year after marriage. At present, according to statistics, the incidence of infertility in China is 6% to 10% Why is the time defined as more than 1 year? Because a couple with normal fertility will have an 85% chance of conceiving in 12 months without contraception and 93% in 2 years. The chance of conception per ovulation cycle is only 20 to 25%. Ways to avoid and prevent infertility: 1. Good habits: keep a relaxed mood, a balanced diet, pay attention to the combination of work and rest, and choose suitable exercise programs according to the physical condition, such as walking, jogging, dancing, etc. to enhance physical fitness. Quit drinking and excessive smoking habits, pay attention to menstrual hygiene. 2, pay attention to premarital examination, in order to detect congenital abnormalities or physiological abnormalities of the reproductive system in advance. 3, avoid premature sex, sex should be moderate, to avoid harming sperm and consuming yin. Pay attention to postpartum or post-abortion infections. 4, grasp the ovulation period, during the ovulation intercourse, can increase the chances of conception. Ovulation is around the 14th day before the next menstrual period. If the menstrual cycle is 28 days, ovulation is exactly in the middle of two menstrual periods. For women with irregular periods, it is best to detect the basal body temperature for more than 3 months to find their ovulation period. You can also use the same test paper to detect the time of ovulation.