The World Health Organization states that having sex without contraception for more than 12 months and still not conceiving is considered infertility. Male infertility is based on clinical manifestations. It can be divided into absolute infertility and relative infertility. Influencing factors: 1, affect testicular function, resulting in sperm disorders, such as: cryptorchidism, Creutzfeldt-Jakob syndrome, pituitary tumors, varicocele, environmental factors, etc… Cryptorchidism, or incomplete testicular descent, is a common cause of male infertility. It can manifest as azoospermia, oligospermia, and oligozoospermia, and lead to infertility. Cryptorchid testes located in the abdomen are prone to cancer and should be given high priority. Varicocele occurs mostly in adolescence and young adulthood, with a prevalence of 10-15% and up to 40% in infertile men, of which secondary infertility is 70-80% Environmental factors: chemical toxic substances affecting the testes: metals, pesticides, organic compounds, drugs; physical factors affecting the testes: heat, microwave, infrared, radiation. Lifestyle: clothing, such as tight-fitting clothes; food, such as bad hobbies, tobacco and alcohol; bad activities such as sauna. 2, other causes of male infertility are: vas deferens obstruction male genital tract infection immune factors infertility, etc.