Anti -sperm refers to no sperm examination (generally more than secondary). No sperm.Or congenital sperm -free sperm -free and non -sperm -free disease is mostly due to congenital shortage of endowment, weak renal sperm losses, fate, firing, and firing. The first category is testicular sperm functional disorders. Sperm cannot produce.EssenceThe second category is that testicular sperm function is normal.
1. Obstructive sperm -free
The causes include: ① congenital malformations, common epididymal heads, epididymal locking, lack of or not developmental; ② infection, gonococci, tuberculosis, and other bacterial infections can cause epididymal and vascular obstruction;Compress the epididymal tube caused by obstruction; ④ damage blocks the transmission pipeline
2. Sperm production disorder
(1) Genetic diseases: ominant dye or sex chromosome abnormalities affect testicular sperm, such as KLINEFELTER syndrome, etc.
(2) Congenital testicular abnormalities: Abnormal testicular development or abnormal testicular position can cause sperm to generate disorder.
(Editor in charge: Internship Zhang Yiwen)
