I have not had my period in over a year and my doctor said I have polycystic ovary syndrome. Will I get a regular cycle after I've been treated?
- Elaina*

Yes, your cycle should go back to normal with treatment.

Teen girls get irregular periods for many different reasons, including health conditions — like polycystic ovary syndrome (PCOS) — that cause changes in hormones. When a girl has PCOS, her ovaries produce higher than normal amounts of hormones called androgens. These androgens can interfere with the egg development and release that are part of a girl's normal menstrual cycle.

There are several ways to treat PCOS. If a girl is overweight, weight loss can sometimes restore hormone levels to normal. Doctors also might prescribe medications that reduce androgen levels.

How PCOS is treated all depends on the individual and her unique body chemistry. Sometimes doctors may try out different treatments before landing on the right one. So work with your doctor and go to follow-up appointments. That way you can keep your doc informed about how you're feeling, how well a medication is working, and what your cycle is doing.

Reviewed by: Steven Dowshen, MD
Date reviewed: July 2010

* Names have been changed to protect user privacy.