Why is the male friend's vas deferens blocked? What should I check for blocked vas deferens

Obstruction of vas deferens is a common disease in andrology. In fact, it is very harmful. The patient must take measures immediately after illness. However, patients with vasoobstruction must understand the causes of vasoobstruction before treatment. Why is the male friend's vas deferens blocked?

Reasons for obstruction of the vas deferens 1. Urogenital system infection: when men suffer from diseases such as testitis, prostatitis, seminal vesiculitis, tuberculosis of the vas deferens in the testis, it may cause the junction of the testis and the vas deferens.

Causes of obstruction of the vas deferens 2. Many obstruction of the vas deferens caused by surgical injury are caused by hernia repair, varicocele of the spermatic cord, spermatic cord tumor surgery and other operations that damage the vas deferens, testicular damage caused by testicular seminal cyst, testicular hydrocele, prostate surgery may lead to obstruction of the ejaculatory orifice or direct injury

The reason for the obstruction of the vas deferens 3. Tumor: the obstruction of the vas deferens in life is also testicular tumor, seminal vesicle tumor, prostate tumor, etc., and the obstruction of the vas deferens.

The fourth reason for the obstruction of the vas deferens is congenital malformation: some male friends have diseases caused by congenital malformations of some genitals, such as congenital head, body and tail of the epididymis, partial or complete absence of the vas deferens, unconnected vas deferens and epididymis, and underdeveloped epididymis, vas deferens or seminal vesicles.

What items are involved in the examination of vas deferens blockage

1. Semen volume Normal semen volume is 2-6 ml, of which seminal vesicle secretion accounts for 2/3. If the semen is less than 2 ml (oligospermia), it has the following significance:

(1) Ejaculatory duct hypoplasia, often accompanied by seminal vesicle and vas deferens hypoplasia;

(2) Ejaculatory duct obstruction;

(3) Obstruction or contraction of seminal vesicle neck. Under the above conditions, the secretion of seminal vesicle could not be discharged, and the semen volume was significantly reduced. When the bilateral ejaculatory ducts are completely obstructed, the secretion of the prostate cannot be discharged, which will be manifested as azoospermia, that is, no ejaculation of semen, but the patient's erection and orgasm are normal. Although retrograde ejaculation did not produce semen, there was sperm in urine after ejaculation.

2. Seminal plasma fructose level

(1) Ejaculatory duct hypoplasia

(2) Ejaculatory duct obstruction

(3) Obstruction or contraction of seminal vesicle neck

(4) Seminal vesiculitis

(5) Seminal vesicle hypoplasia

(6) Adolescent defect of interstitial cells (normal testicular size can be excluded).