Normal ovarian cycle and Polycystic ovary syndrome
PCOS is the main cause of infertility in women. It affects how the ovaries work and is linked to a hormone imbalance.
Illustration of a female disease - Polycystic ovary syndrome
Polycystic ovary syndrome (PCOS) is a hormonal disorder in women of reproductive age. Women with PCOS may have infrequent or prolonged menstrual periods or excess male hormone levels. The ovaries may develop numerous small cysts.