The cause of PCOS is not fully understood, but genetics may be a factor. PCOS seems to run in families, so your chance of having it is higher if other women in your family have it or have irregular periods or diabetes. PCOS can be passed down from either your mother's or father's side.What are the symptoms?
Symptoms tend to be mild at first. You may have only a few symptoms or a lot of them. The most common symptoms are:
- Weight gain and trouble losing weight.
- Extra hair on the face and body. Often women get thicker and darker facial hair and more hair on the chest, belly, and back.
- Thinning hair on the scalp.
- Irregular periods. Often women with PCOS have fewer than nine periods a year. Some women have no periods. Others have very heavy bleeding.
- Fertility problems. Many women who have PCOS have trouble getting pregnant (infertility).