The diagnostic criteria for infertility is that the husband and wife have not taken any contraceptive measures, and they have lived regularly for at least one year without pregnancy, which can be diagnosed as infertility. The incidence of infertility is about 10%, and the reasons include both female and male factors. The common causes of female factors are as follows: 1. Tubal infertility, such as hydrosalpinx, blockage, etc.; 2. Uterine lesions, such as submucosal fibroids, adenomyosis, intrauterine adhesions, etc.; 3. Cervical factor infertility; 4. Endometriosis infertility. There is also a large category of female ovulatory infertility, the more common polycystic ovary syndrome, ovarian insufficiency, hyperprolactinemia and so on.
Male factor infertility includes oligospermia, asthenozoospermia, teratozoospermia, azoospermia, etc., as well as male sexual dysfunction. In addition, there are immune factors infertility, 10%-20% of patients can not find the cause of infertility, diagnosed as unexplained infertility.
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