Pathology
The vas deferens may be obstructed, or may be completely absent (the latter a potential feature of cystic fibrosis), causing male infertility. It can be overcome by testicular sperm extraction (TESE), collecting sperm cells directly from the testicles.
Read more about this topic: Vas Deferens
Famous quotes containing the word pathology:
“It is often said that Poland is a country where there is anti-semitism and no Jews, which is pathology in its purest state.”
—Bronislaw Geremek (b. 1932)