What causes PCOS?
Doctors do not know exactly what causes PCOS. If you have PCOS, you have a hormone imbalance. Your ovaries make too much of one type of hormone (called androgens). You may also have too much insulin, which regulates your blood sugar levels. These hormone problems cause the symptoms of PCOS.
What are the risk factors for PCOS?
You are more likely to have PCOS if your mother or sister has PCOS.
Polycystic Ovary Syndrome: It's Not Just Infertility by MH Hunter, MD, and JJ Sterrett, PHARM.D (American Family Physician September 01, 2000, http://www.aafp.org/afp/20000901/1079.html)
Written by familydoctor.org editorial staff