When a man ejaculates, the sperm-carrying semen fires out through the urethra in a seek-and-conquer mission. It may seem that all these millions of sperm are racing each other to the finish, but the sperm have different roles. Some are deemed the leaders of the pack, trying to be the first to cross the line. Others are designed to assist, specifically by blocking other men's sperm from making it to the finish line. The goal of pregnancy, of course, is for a sperm to find an egg during a precise window of opportunity and fertilize it.
Male Reproductive System
A healthy sex life is a very important part of life for most men. Mens reproductive health is dependent on the health and proper functioning of the external genitals, internal sex organs, sperm, semen, and male sex hormones. Mens sexual health also includes fertility. You may assume that women are mostly responsible for infertility, but mens health issues account for half of all infertility cases. Protect your sexual health and fertility by living a healthy lifestyle and avoiding risky behaviors. If you notice pain in your groin area, have problems maintaining or getting an erection, or have problems with ejaculation, you may need to talk to your doctor.