Female Pelvic Conditions: Polycystic Ovary Syndrome

It is estimated that polycystic ovary syndrome (PCOS) affects about 10% of women of reproductive age in the United States. Principal risk factors include obesity and a family history of PCOS. A diagnosis of PCOS should be considered in women with irregular or absent menstrual cycles, issues related to hyperandrogenism, or infertility. The Rotterdam diagnostic criteria require two of the following three factors: oligo- or anovulation, clinical and/or biochemical signs of hyperandrogenism, and polycystic ovaries identified on ultrasonography. Laboratory tests are recommended to rule out other conditions and factors, including thyroid conditions, hyperprolactinemia, atypical congenital adrenal hyperplasia, and tumors. The mainstays of treatment are lifestyle changes to achieve weight loss and combination oral contraceptives (COCs). (PCOS is an off-label use of COCs.) A weight loss of 5% to 10% has been shown to decrease PCOS symptoms. Medical or surgical management of obesity may be indicated. COCs provide endometrial protection and help manage acne and hirsutism. (Hirsutism is an off-label use of COCs. Acne is an off-label use of some COCs.) Routine acne treatments also are used. Hirsutism may improve with topical cosmetic treatments, spironolactone, or finasteride. (Hirsutism is an off-label use of spironolactone and finasteride.) Infertility is a common issue in patients with PCOS. The aromatase inhibitor letrozole is the first-line treatment for PCOS-related anovulation. Gonadotropin-releasing hormone analogues also are used to induce ovulation. (This is an off-label use of letrozole and gonadotropin-releasing hormone analogues.).