Infertility: It is defined as a couple living together, having a normal sex life, without contraception for 1 year and not getting pregnant. It contains 4 elements: 1. Couple cohabitation. Some people have been married for a long time, separated from each other, or one of them is often on business trips, so it is not easy to catch ovulation and have intercourse, so the chance of pregnancy is naturally low, but both spouses have no disorders causing infertility. Therefore, in this case, the diagnosis of infertility cannot be made simply on the basis of 1 year or even several years of non-pregnancy. 2. Normal sexual life. We can have normal intercourse and maintain a normal frequency of intercourse. The normal sex life lives 2-3 times a week. Too frequent sex life affects semen treatment, so abstinence is needed. Some people only have a sex life 1-2 months, which is similar to the separation of two places, also not easy to get pregnant. 3, not contraceptive: not take any contraceptive measures. This is easy to understand. 4, 1 year without pregnancy. Under normal circumstances, the chance of pregnancy within 1 year is about 85%. More than 1 year, especially if you are older, you should be actively checked and treated. For women, by the age of about 35, ovarian function begins to gradually go downhill. In addition, as you age, your chances of developing other diseases that can affect your pregnancy increase. Therefore, it is important to get pregnant before it is too late. As the old saying goes, the male sperm is strong and the female menstruation is regulated, and the way to have a child is also. The basic conditions for pregnancy: For women: 1. normal menstruation – means normal ovulation. 2. 2, the fallopian tube is open – to ensure that the sperm and egg can meet and unite smoothly, the fertilized egg planted in the uterine cavity. For men: 1. Normal semen. 2. Normal intercourse. Of course there are some other factors that can lead to infertility and sterility, such as chromosomal abnormalities, uterine malformations, immune factors, environmental factors, etc. As to check whether the fallopian tubes are open or not, the water pass relies on the operator’s personal feeling and the patient’s pain to judge, which has a big error. The imaging is more objective and has X-rays, so the information can be preserved. It is true that some people will get pregnant as a result, but more people will have other problems due to the repeated fluids. It is true that some people will get pregnant as a result, but more people will have other problems due to repeated fluids.