The whereabouts of an old Chinese doctor who specialized in treating male and female infertility ten years ago in Caizhuang, Liaoyang, Liaoning. Can there be descendants now? Is medical ethics as magical as rumors? The causes of infertility are divided into male factors and female factors, among which female factors account for a little more. For women, there are two main reasons: one is the problem of fallopian tubes; The other is ovulation. Fallopian tube is the most common factor leading to female infertility. The fallopian tube is the place where sperm and eggs meet and the only way to transport fertilized eggs to the uterus. Therefore, if the fallopian tube is not unobstructed or blocked, it may lead to infertility. The problem of ovulation, women do not ovulate may be due to abnormal reproductive endocrine or abnormal ovarian function. Polycystic ovary syndrome (PCOS) is more common now. Follicles of these patients are very small and difficult to grow up. Even if you grow up, it is not easy to discharge, which will lead to ovulation and no way to get pregnant in the future. There are also some influencing factors, such as uterine malformation or submucosal myoma, endometrial polyps, etc., which can also lead to infertility. In addition, there are cervical problems, cervical mucus abnormalities, which affect sperm motility when they pass through the cervical checkpoint, leading to infertility. In addition, there are vaginal factors. The abnormal development of female vagina affects sexual intercourse, thus hindering the entry of sperm. For men, it is mainly sperm abnormality, low sperm activity rate or high sperm abnormality rate, which may lead to infertility.