How does the testosterone still get around the body after the vas deferens is cut? What is the science behind it? Thanks
Answers from doctors (6)
Test-year-old believes the testicles by means of the bloodstream. Both artery and veins are left intact as a vasectomy is a separate tube that carries the sperm and is called the vas deferens. The vas deferens is interrupted but the testicular arteries are not
Published on Jul 11, 2012
Testosterone is made in the testicles and circulates through the blood stream. It does not travel through the vas deferens. Hope this helps.
Published on Jul 11, 2012
There are two cell types in the testicles and one produces sperm and the other testosterone. In the former the sperm leaves the testicle through the vas deferens and in the latter the testosterone is released into the blood system. This is why the testosterone levels in the male are not affected by a vasectomy.
Published on Jul 11, 2012
Testosterone is created by Leydig cells in the testicle. They are located next to, but not in, the seminiferous tubules where sperm is created. The testosterone is secreted directly into the bloodstream, not into the vas deferens (which is cut to perform a vasectomy). That is why testosterone levels do not change after a vasectomy.
Published on Jul 11, 2012
Testosterone gets produced by Leydig cells within the testis and gets directly secreted into the blood stream. The vas deferens transports the sperm from the testis, not testosterone.
Published on Jul 11, 2012
While a portion of the testosterone produced by the testicle goes into the tubules that contain the sperm (seminiferous tubules) and eventually enters the vas, the greater percentage returns to the body via the spermatic veins draining the testicle.
Published on Jul 11, 2012
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