Uterine Fibroids: Uterine fibroids are benign tumors (non-cancerous tumors) of a woman's uterus. The exact reason why some women develop uterine fibroids is not known. Obesity, nulliparity, and early menstruation are conditions associated with uterine fibroids. Some of the symptoms of uterine fibroids include irregular vaginal bleeding, constipation, lower abdominal pain, infertility, and more. Treatment of a uterine fibroid depends on the size and location of the fibroid.