Heal Dove, a site created by nurses, doctors, and patients—sharing our unique expertise and knowledge about health, medicine, and injuries, interviews Mark P. Trolice, M.D., for his insights on reasons you could miss your period, other than pregnancy.

“Polycystic ovarian syndrome is the most common hormonal disorder in women, affecting 6-10% of all reproductive-aged women,” says Dr. Trolice.