PCOS (Polycystic Ovarian Syndrome) is one of the most common endocrine diseases affecting 6 to 10 % of childbearing age women. PCOS can be a complex hormonal and metabolic condition. The symptoms of PCOS are usually present at puberty, but it may take many years before patients are correctly diagnosed. Diagnosing PCOS can be tricky because not all women will have the same symptoms. The name ‘polycystic’ suggests you might have multiple ‘cysts’ on your ovaries.