PCOS affects the way the ovaries work and is characterised by irregular periods, excess androgens - a high level of 'male hormones' in the body - and polycystic ovaries, where the ovaries become enlarged and contain lots of fluid-filled sacs which surround the eggs.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/how-pcos-affects-your-mental-health