Vas deferens obstruction caused by unable to bear children, is more common clinical phenomenon.This situation, mostly in the inspection showed azoospermia. However, we must clarify the reasons for the time of diagnosis because the development of areas such as chromosomal abnormalities can also occur such an outcome, its treatment has a very important distinction, and some can be treated, while others are impossible to treat.
    Discharges are required to pass testicular sperm efferent duct, epididymis tubes, vas deferens, ejaculatory duct and part of the urethra.Blocking any of the above parts of the exhaust can affect the sperm. If unilateral vas deferens obstruction, then little impact on fertility, such as the bilateral blocked, sperm can not be properly discharged, it will lead to infertility.
    The vas deferens obstruction caused by a common cause of the following: urinary tract infection of the reproductive system, such as epididymitis, prostatitis, Vesiculitis vas deferens, or epididymis tuberculosis, causing obstruction in the vas deferens to the epididymis and the vas deferens junction see more. Damage: If the hernia repair, varicocele, spermatic cord tumor surgery, and so could harm the vas deferens; epididymal sperm cysts, hydrocele surgery may be injured epididymis; prostate surgery can cause mouth ejaculatory duct obstruction; or even if no direct injury, but the adhesion of postoperative infection can scar the vas deferens to form Deng Jun Tao pressure, obstructive. Cancer: If epididymal tumor, seminal vesicle cancer, prostate cancer, etc., can result in the vas deferens obstruction.     Congenital malformations: If epididymal head, body, tail section missing such as some or complete absence of the vas deferens, vas deferens and epididymis are not connected, epididymis, vas deferens, or seminal vesicle hypoplasia and so on.
    Vas deferens Road congestion can cause obstructive azoospermia, clinical, also known as pseudo-azoospermia, the clinical performance and characteristics: the size of normal testes, no sperm, serum follicle-stimulating hormone (FSH) and testosterone levels to normal , testicular biopsy results of normal. But to diagnosis, it must be carried out angiography.

Dong's Chinese Medicine Research Institute, Shijiazhuang Tel :0311-88468620