The vagina is a part of the female body. It is between the perineum and the urethra. The vaginal opening is much larger than the urethral opening. It is a tube leading from the uterus to the outside of the body. Menstrual fluid (red, blood-filled liquid lost during menstruation) leaves the body through the vagina. During sexual intercourse, the penis is put into the vagina. During birth, the vagina opens to let the baby come out from the uterus. The vagina is reddish-pink in color, though ... Vaginal health affects more than just a person's sex life. Find out about common vaginal problems and how to have a healthy vagina. Vaginal health is vital to overall health. When the vagina is not healthy, it can affect the quality of sex and orgasms. It also may affect pregnancy. A vaginal fistula is an open communication between the vagina and one of the adjacent pelvic organs. It typically occurs as a result of prolonged labour (where a Caesarean section is not available). Explore the anatomy, function, and clinical relevance of the vagina, a key female reproductive organ.