Blockage can arise at any stage, like within the testicle, in the tubes that drain the testicle, from the epididymis, within the vas deferens, near the ejaculatory ducts or from the urethra. .I thought ivf could well be straightforward for me. I learned right away that I have severe endometriosis. https://dralpersismanoglu.com/en/tag/what-are-the-negatives-of-ivf/