Ovarian cysts cause symptoms different from fibroid tumors, including pain during bowel movements, nausea, vomiting, breast tenderness, and pelvic pain before menstruation begins, at the end of a period, or during sex, Mayo Clinic states. Signs indicative of tumors are heavy flow, long periods, constipation and back or leg pain.
Ovarian cysts are fluid-filled sacs that form on or in the ovary, reports MedlinePlus. Fibroid tumors are uterine growths that range from pea- to melon-size, Johns Hopkins Medicine explains.
Ovarian cysts and fibroid tumors, or uterine fibroids, share some of the same symptoms, according to Mayo Clinic. These include general pelvic pressure or pain, frequent need to urinate and inability to empty the bladder completely.