The most common symptoms of PCOS are an irregular period, infertility, increased hair growth and unusual weight gain, even with dieting or increased exercise. Women with PCOS can go for months without a period and then start bleeding heavily for days. Because PCOS disrupts ovulation it can be very difficult to become pregnant. Low progesterone levels can contribute to all of these symptoms. Other signs of PCOS can include acne, high blood pressure, obesity, and abnormal facial and body hair growth (due to too much testosterone). One of the less recognizable symptoms of PCOS is depression, which can be misread as a bipolar illness. While depression stems from many factors, we think it is always a good idea to consider PCOS if patients have other symptoms.