There are many key areas in the field of female reproductive system health, including menstruation, pregnancy, fertility, and menopause. As a woman, you may be concerned about other issues related to your sexual health, including genital problems and sexually transmitted diseases. If you are a female that is sexually active, or over the age of 18, it is important to begin seeing a womans' health specialist in order to make sure that your reproductive system stays healthy. Before that, any concerns with menstruation should be addressed with a physician. As you get older, most women become concerned with issues pertaining to avoiding or achieving pregnancy, until menopause begins around age 50.