Azoospermia caused infertility accounts for about one fifth of the male infertility is one of the biggest opponents of the male fertility. Although more and more in recent years, suffering from azoospermia male friends, but for azoospermia have to understand male friends but very few. In order to facilitate a more male friends can be more convenient to the prevention of this disease, the following Dongguan Male Hospital experts explain azoospermic. Azoospermia can be divided into two categories, the first category is spermatogenic dysfunction, can not produce sperm, also known as true azoospermia. The second category is spermatogenesis is normal, but the vas deferens obstruction, sperm can not be eliminated from the body, also known as obstructive azoospermia. Spermatogenesis disorder (1) Genetic disease: autosomal or sex chromosome abnormalities affect the testicles produce sperm, such as Klinefelter syndrome, etc. (klinefelter). (2) congenital testicular abnormalities: abnormal testicular development or abnormal testicular position were barriers to sperm production can. (3) the testicle itself lesions: such as testicular trauma, inflammation, torsion and testicular vascular lesions. (4), endocrine disorders, pituitary hyperthyroidism or low, pituitary tumor, adrenal hyperfunction or low, hyperthyroidism or hypothyroidism can affect sperm production and cause azoospermia. (5) serious systemic disease and malnutrition can cause azoospermia. (6) Radiation damage and drugs, especially cytotoxic drugs, spermatogenic cell damage, and in severe cases can cause azoospermia. Obstructive azoospermia patients with secondary sexual characteristics, libido, sexual function is normal, normal testicular development, sperm production, but the vas deferens obstruction without sperm discharged. Causes include: ① congenital malformations, common epididymal head ectopic epididymal duct atresia of the vas deferens or not developed; ② infection, Neisseria gonorrhoeae, Mycobacterium tuberculosis and other bacterial infections can cause the epididymis and vas deferens obstruction; ③ epididymis at the cyst oppression epididymal duct causing obstruction; ④ damage to the vas deferens obstruction. The above is azoospermia azoospermia detail, and the prevention and treatment of the majority of male friends will be helpful. Dongguan Men remind the majority of male friends to keep good habits in daily life, pay attention to good personal physical health, and if found semen abnormal, do not panic, should go to regular hospital for examination and treatment. Tips: Dongguan Oriental Urology Hospital has a first-class testing equipment, state-of-the-art facilities and warm service, using the popular set of user-friendly, "a medical clinic," not only to protect the privacy of patients, more conducive to full between doctors and patients exchanges doctors develop personalized treatment program, based on the patient's medical needs, welcomed by the majority of patients. If there are other questions, call the experts call 0769 -87,059,060 or directly to the hospital, I wish you health!