This document discusses polycystic ovarian syndrome (PCOS). It describes some of the common symptoms of PCOS which include thinning hair, facial acne, irregular menstrual periods, difficulty getting pregnant, and rapid weight gain. It notes that PCOS is a common cause of infertility in women. The document provides diagnostic criteria for PCOS and lists some potential causes like changes in lifestyle and diet, genetic factors, and obesity. It also outlines tests and treatment options for PCOS, which include ultrasounds, fertility drugs, weight reduction, hormone analysis, and adopting healthy habits.