The unable to fertility caused by the obstruction of the tubal pipe is a common phenomenon of clinical clinical.
In this case, most of them are sperm -free during inspection.However, the cause must be clear during diagnosis, because development can also occur such results such as chromosomal abnormalities. There are very important differences in the treatment, some can be treated, and some cannot be treated.
Sperm discharge must be output small tubes, epididymia, vasia, ejaculation pipes and part of the urethra by testicular output.The obstruction of any part above can affect the discharge of sperm.If the unilateral vascular pipe is obstructed, it has little impact on fertility. If bilateral obstruction and sperm cannot be discharged normally, it will lead to infertility.
The common causes of the obstruction of the vascular pipeline are the following:
The infection of the urogenital system, such as epididymitis, seminal vesiculitis, or tuberculosis tuberculosis, etc., cause obstruction of vasters of vasters, and is more common in connection with epididymia and vasters.
Damage: such as hernia repair, spermatic vein, spermatogenic tumor surgery and other injured and vascular tubes; epididymal sperm cysts, testicular hydrocellic sector effusion surgery, can hurt the epididymia; prostate surgery can cause the ejaculation tube mouth to be closed;Direct damage, but postoperative infection adhesion scar formation, etc., can be compressed and obstructed by the inferior pipeline.
Tumors: such as epididymal tumors, seminal tumors, prostate tumors, etc., can cause obstruction of vasters.Congenital malformations: such as epididymal head, body, and tail section, such as a section or completely lacking, vasia tubes are not connected to epididymia, an epididymal, vasal tubes or seminal vesicles are inaccurate.
The obstruction of the vascular pipeline can cause obstructive sperm -free, and it is also clinically called pseudo -sperm -free.
The clinical manifestations and characteristics are: testicular size, no sperm, serum promoting follicles (FSH) and testosterone content normally, and testicular biopsy pathological examination results.However, to confirm the diagnosis, it is necessary to perform angiography.
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