With the accelerated pace of modern life and changes in lifestyles and living environments, male infertility accounts for an ever-increasing proportion of infertility causes, accounting for about 40-50%. At present, some people, especially men, often have a tendency to think that men have normal sexual function, that is, they have fertility, and thus infertility tests only check the female spouse. And when the female fertility tests are normal, only to check the male cause, often delayed diagnosis and treatment time. In fact, it is easier to check the male cause, which should be checked first or at least at the same time. First, the main examination of infertility caused by male factors 1, semen analysis: between 3-7 days of abstinence, take masturbation for specimen collection. Specimen collection should be carried out in the hospital as far as possible, and those who need to collect at home because of the difficulty of collection in the hospital should be sent to the laboratory with heat insulation within 20-30 minutes after semen collection, and more attention should be paid to heat insulation in winter. Among the various indicators of semen, the normal morphology ratio of sperm, sperm density and sperm vitality have the greatest impact on fertility. Azoospermia, necrospermia, oligospermia, hypospermia and dyszoospermia can make their spouses infertile. 2, post-coital test: should be arranged before ovulation, when the body’s estrogen level is high, cervical mucus, thin, bright, long, more conducive to sperm swimming, penetration. Women are required to lie down for 30 minutes after ejaculation during sexual intercourse, waiting for semen to liquefy. If you get up after sexual intercourse, the semen has not yet liquefied, and the spermatozoa are not released from the seminal plasma that flows out of the body, which will affect the results of the test. 9-12 hours after sexual intercourse to the hospital to take the secretion of the posterior fornix, cervical secretion examination. Second, the treatment of infertility caused by male factors 1, Chinese medicine, acupuncture treatment, suitable for gonadotropin normal. 2.For patients with oligospermia and low sperm vitality, especially those with low gonadotropin and low gonadotropin, exogenous gonadotropin treatment can be used, such as HMG, HCG and so on. 3, after various methods of treatment is invalid or confirmed by testicular biopsy for azoospermia, it is recommended to give up the treatment and carry out assisted reproductive technology. 4.Cooperate with exercise, quit smoking and drinking, go to bed early and don’t stay up late.