Gynecology is a branch of medicine that focuses on the health of the female reproductive system. Gynecologists are doctors who specialize in this field, dealing with a wide range of issues related to the female reproductive organs, including menstruation, fertility, pregnancy, childbirth, sexually transmitted infections (STIs), hormonal disorders, and menopause. They perform regular check-ups, screenings, and treatments to ensure women's reproductive health and address any concerns or conditions that may arise.