Some women with PCOS have irregular periods.
If you have fewer than three periods a year, the lining of the womb (endometrium) can thicken and this may lead to endometrial cancer in a small number of women.
There are various ways to protect the lining of the womb using the hormone progestogen. Your doctor will discuss the options with you. This may include a five-ten day course of progestogen tablets used every three or four months, taking a contraceptive pill or using the intrauterine contraceptive system (Mirena®). The options will depend on whether you are trying for a baby.
PCOS does not increase your chance of breast or ovarian cancer.
