How does a vasectomy or a tubal ligation sterilize an individual?

Answer:
Either works by preventing sperm and egg from reaching each other. Vasectomy by preventing sperm from entering the urethra and tubal ligation from preventing sperm from reaching the ovary.
First answer by LeftCoastMom. Last edit by LeftCoastMom. Contributor trust: 171 [recommend contributor recommended]. Question popularity: 0 [recommend question].