Reproductive Science Center of the San Francisco Bay Area's doctors' blog provides a deeper explanation of numerous topics such as infertility, in vitro fertilization, and other fertility subjects.
Infertility is the inability to become pregnant after a year of unprotected intercourse, six months if the female is older than 35. It can result from fertility problems with either the male, female or both.
For a woman to be fertile, her body must produce healthy eggs that can be reached by sperm cells, and have a healthy uterus; however, several problems can diminish a woman's fertility.
For a man to be fertile, his sperm cells must be healthy and be transported to their destination - the egg. Most cases of male infertility are due to sperm abnormalities, yet other factors can play a role.