Why Do Ovarian Dermoid Cysts Grow Back After Removal?

Researchers hypothesize that ovarian dermoid cysts may recur in procedures where the surgeon does not have a clear enough view of the pelvis and is unaware that a second cyst exists, according to Women's Health Advice. Laparoscopies, while less intrusive than laparotomies, have an ovarian dermoid cyst recurrence rate of 7 percent within two years following surgery. Laparatomies have a recurrence rate of approximately 0 percent, although the length of hospitalization and associated blood loss are both higher.

Dermoid cysts, or mature cystic teratomas, are noncancerous growths that can occur at any stage of life in both men and women, states Women's Health Advice. These cysts can contain a wide variety of bodily tissues, such as fat; teeth, cartilage and bone; hair and nail; eye; and thyroid. Ovarian dermoid cysts are leathery in texture and can develop on one or both ovaries at any point during a woman's reproductive years. Associated side effects of ovarian dermoid cysts include unusual vaginal bleeding, urinary incontinence, abdominal, lower back and thigh pain, nausea and weight gain, and painful sexual intercourse. In rare cases, a cyst may grow large enough to cause ovarian torsion and become a medical emergency due to restricted blood flow.

Totipotential cells, or master cells, may become ovarian dermoid cysts when overstimulated, explains Women's Health Advice. Hormone levels, such as those from estrogen, are a possible link. Women who have polycystic ovary syndrome or endometriosis are more likely to carry ovarian dermoid cysts. Pelvic examinations and ultrasounds are common methods of discovery for these growths, which are mostly harmless.