Polycystic ovary syndrome

[Britney]

Polycystic ovary syndrome ([PCOS]) is an endocrine disorder that affects approximately 5% of all women. It occurs amongst all races and nationalities, is the most common hormonal disorder among women of reproductive age, and is a leading cause of [infertility].
The principal features are weight problems, lack of regular [ovulation] and/or menstruation, and excessive amounts or effects of androgenic (masculinizing) hormones. The symptoms and severity of the syndrome vary greatly among women. While the causes are unknown, insulin resistance, diabetes, and obesity are all strongly correlated with PCOS.

[Little_Girl]

a condition in which there are a lot of cysts (= small growths filled with liquid) on the ovaries, associated with having high levels of male hormones