Male infertility – five factors of oligospermia! What are the factors leading to male infertility azoospermia? Male infertility – the five major factors of oligospermia, Shanghai Male Infertility Hospital experts pointed out that the general sperm density of less than 20 million / ml is oligospermia. Between less than 20 million and more than 10 million, it is called mild oligospermia; less than 10 million and more than 5 million, it is called moderate oligospermia; less than 5 million is called severe oligospermia; if it is said that only a few sperm can be found even under high magnification field of view, or only a few sperm can be seen after centrifugation, it is called severe oligospermia. Special reminder: In recent years, the quality of human sperm with the environment, estrogenic toxins pollution and other factors are declining trend, resulting in the proportion of male infertility is on the rise. There are many factors that lead to oligospermia, inflammation, drug effects; alcoholism, excessive smoking, drugs can inhibit sperm production; prostatitis, varicocele, etc. can inhibit sperm production. The following are a few factors summarized by experts: (1) endocrine abnormalities: normal male sperm function depends on the normal function of the hypothalamus-pituitary-gonadal axis, any one of which is impaired, will affect the sperm function, other diseases such as thyroid and adrenal gland can also affect the function of the gonad and cause spermatozoa; (2) cryptorchidism: some studies have reported that about 30% to 60% of patients with unilateral cryptorchidism are infertile, and 50% to 60% of patients with bilateral cryptorchidism are infertile. (2) Cryptorchidism: Some studies have reported that about 30% to 60% of patients with unilateral cryptorchidism are infertile and 50% to 100% of patients with bilateral cryptorchidism are infertile. (3) Inflammation of the genitourinary system: including orchitis, epididymitis, seminal vesiculitis, prostatitis, urethritis, etc. The proportion of such patients in oligospermia is the highest. Inflammation of the genitourinary tract can directly affect the spermatogenic function of the testes, and can also cause the production of anti-sperm antibodies in the blood or semen, affecting the pH of the semen, which, together with the direct killing effect of pathogens on sperm, can cause sperm reduction; (4) varicocele: Infertility caused by varicocele accounts for 30% to 40% of male infertility. The testicular spermatogenic function is affected due to elevated testicular temperature and toxin accumulation, causing oligospermia and, in severe cases, azoospermia. The symptoms of varicocele are not obvious at first, but in severe cases, the scrotum may feel swollen and swollen, and the vascular masses like earthworms may protrude from it. The semen examination shows that the number of sperm decreases, the mobility is poor, and the number of deformed sperm increases; (5) high scrotal temperature: the varicocele in the testes, which is specially used to produce sperm, is very sensitive to temperature changes, and the suitable temperature of this part is 2~3℃ lower than the human body temperature, and the high temperature easily inhibits the survival and maturation of sperm, resulting in a decrease in the number of sperm in the semen or reduced mobility. Therefore, male friends should wear less tight pants, less sauna, avoid electromagnetic radiation and high temperature, to develop good habits. The above introduction of “male infertility – five factors of oligospermia”, hope to bring you some help. If your health has symptoms of a disease, do not delay the diagnosis, should go to a regular hospital in time to avoid delaying the disease, resulting in serious consequences.