Gynaecological disorders are a group of medical conditions that affect the female reproductive system. They can be caused by a variety of factors, including genetics, lifestyle, environment, and infection. Common gynaecological disorders include endometriosis, ovarian cysts, pelvic inflammatory disease, and uterine fibroids. Endometriosis is a disorder in which tissue similar to the lining of the uterus grows outside of the uterus. Symptoms may include painful periods, abdominal and pelvic pain, and infertility. Treatment for endometriosis typically includes hormone therapy and surgery. Ovarian cysts are fluid-filled sacs that can form on the ovaries. They are usually benign, but can cause pain and other symptoms such as irregular menstrual cycles. Treatment may include hormonal therapy and, in some cases, surgery. Pelvic inflammatory disease is an infection of the reproductive organs, usually caused by a sexually transmitted infection. Symptoms may include fever, abdominal pain, and pain during intercourse. Treatment typically includes antibiotics. Uterine fibroids are noncancerous growths that can develop on the walls of the uterus. Symptoms may include heavy menstrual bleeding, pelvic pain, and frequent urination. Treatment for uterine fibroids can include medications and surgery.