But there are also manifestations of mental health problems, such as anxiety, depression, and eating disorders.A diagnosis of PCOS suggests an increased risk of the following:

Endometrial hyperplasia and endometrial cancer (cancer of the uterine lining) are possible, due to overaccumulation of uterine lining, and also lack of progesterone, resulting in prolonged stimulation of uterine cells by estrogen. It is not clear whether this risk is directly due to the syndrome or from the associated obesity, hyperinsulinemia, and hyperandrogenism. Insulin resistance/Type II diabetes. A review published in 2010 concluded that women with PCOS have an elevated prevalence of insulin resistance and type II diabetes, even when controlling for body mass index (BMI). PCOS also makes a woman at higher risk for diabetes. High blood pressure, in particular if obese or during pregnancy
Depression and anxiety
Dyslipidemia – disorders of lipid metabolism — cholesterol and triglycerides. Women with PCOS show a decreased removal of atherosclerosis-inducing remnants, seemingly independent of insulin resistance/Type II diabetes. Cardiovascular disease, with a meta-analysis estimating a 2-fold risk of arterial disease for women with PCOS relative to women without PCOS, independent of BMI. Strokes
Weight gain
Miscarriage
Sleep apnea, particularly if obesity is present
Non-alcoholic fatty liver disease, particularly if obesity is present
Acanthosis nigricans (patches of darkened skin under the arms, in the groin area, on the back of the neck)
Autoimmune thyroiditis
Some studies report a higher incidence of PCOS among transgender men (prior to taking testosterone), though not all have not found the same association.
Polycystic ovary syndrome, or PCOS, is the most common endocrine disorder in women of reproductive age. The syndrome is named after the characteristic cysts which may form on the ovaries, though it is important to note that this is a sign and not the underlying cause of the disorder.Women with PCOS may experience irregular menstrual periods, heavy periods, excess hair, acne, pelvic pain, difficulty getting pregnant, and patches of thick, darker, velvety skin. The primary characteristics of this syndrome include: hyperandrogenism, anovulation, insulin resistance, and neuroendocrine disruption.A review of the international evidence found that the prevalence of PCOS could be as high as 26% among some populations, though ranges between 4% and 18% are reported for general populations. Despite its high prevalence, the exact cause of PCOS remains uncertain and there is no known cure. Definition
Two definitions are commonly used:

NIHIn 1990 a consensus workshop sponsored by the NIH/NICHD suggested that a person has PCOS if they have all of the following:oligoovulation
signs of androgen excess (clinical or biochemical)
exclusion of other disorders that can result in menstrual irregularity and hyperandrogenismRotterdamIn 2003 a consensus workshop sponsored by ESHRE/ASRM in Rotterdam indicated PCOS to be present if any 2 out of 3 criteria are met, in the absence of other entities that might cause these findings:
oligoovulation and/or anovulation
excess androgen activity
polycystic ovaries (by gynecologic ultrasound)The Rotterdam definition is wider, including many more women, the most notable ones being women without androgen excess.