Uterine fibroids (also called leiomyomas or myomas) are common non-cancerous (benign) growths that develop in or on the muscular wall of the uterus (womb). They are made of muscle and fibrous tissue and can vary in size, number, and location.Key Causes & Risk Factors:The exact cause is unknown, but growth is influenced by:Hormones: Estrogen and progesterone. Fibroids often shrink after menopause.Genetics: They can run in families.Other factors include age (common during reproductive years), race (more common in women of African descent), early onset of menstruation, obesity, and diet.Common Symptoms:Many women have no symptoms. When symptoms occur, they can include:Heavy or prolonged menstrual bleeding (can lead to anemia).Pelvic pain or pressure.Frequent urination or difficulty emptying the bladder.Constipation.Backache or leg pains.Pain during intercourse. Infertility or pregnancy complications (less common).Diagnosis:Fibroids are often found during a routine pelvic exam.Ultrasound (transvaginal or abdominal) is the most common diagnostic tool.MRI or other imaging may be used for more detail.