Classification
The classification of the etiology of male infertility can be divided into absolute infertility (sperm -free) and relative infertility (small sperm or low sperm vitality, etc. according to the fertility ability.Sending infertility; according to the part of the sexual organs, it can be divided into testicular anterior nature, military pellets, and testicular posteriority.
The causes of male infertility are more complicated, and the main reasons are divided into the following:
1. Sperm abnormalities
1. When the sperm density in the sperm -free or sperm is less than 2.0 million/ml, the woman's chance of conception is reduced, and when it is less than 200 million/ml, it will cause infertility.This infertility can be divided into permanent and temporary.The former is found in those who are congenital testicular developmental disorders or those who are climbing pills and severe paths; the latter is more common in sexual life frequency, which leads to the failure of sperm function at a time. Generally, sperm is reduced instead of all sperm.
2. Sperm quality poor semen is not dynamic or too many sperm (more than 20%-25%or sperm activity is poor, or more than 30%of the malformation sperm can often cause infertility.
3. After the semen is abnormal, the normal semen is quickly condensed into jelly after the semen is ejected, and it is all liquefied within 15-30 min in the future.If the semen is not solidified or incomplete, it is often prompted that the seminal vesicles or prostate have diseases.Bacteria and virus infections can also cause changes in semen composition, causing infertility.The pathogenic bacteria in the semen are greater than 103/ml, and the non -pathogenic bacteria are greater than 104/ml, which can cause infertility.
Second, impairment
1. Testes themselves such as testicular tumors, testicular tuberculosis, halo pills syphilis, cold pills non -specific inflammatory trauma or sperm cables to reverse testicular atrophy, testicular lack of testicular, etc., can cause spermatogenic dysfunction and infertility.
2. Abnormal chromosomes of chromosomes can cause the aura pills, etc., and the sexual organs are poorly differentiated, causing authentic bisexin deformity and congenital testicular dysplasia; ingrains can cause metabolic disorders of gonad and sperm cells.
3. Sperm occurrence of functional disorders long -term consumption of cotton oil can affect the occurrence of sperm, and sperm autoimmune can also cause sperm dysfunction.
4. Waiting for diseases such as hidden stars, such as hidden star veins, huge sheath effusion and other diseases, etc., affect the external environment of the testicular local, or cause infertility due to temperature and compression.
