PCOS Symptoms & Causes Recognizing the Classic Triad of PCOS By Nicole Galan, RN Nicole Galan, RN Facebook LinkedIn Twitter Nicole Galan, RN, is a registered nurse and the author of "The Everything Fertility Book." Learn about our editorial process Updated on March 06, 2022 Medically reviewed by Lauren Schlanger, MD Medically reviewed by Lauren Schlanger, MD LinkedIn Lauren Schlanger, MD, is a board-certified primary care physician. She is an assistant professor at the Alpert Medical School of Brown University. Learn about our Medical Expert Board Fact checked by Angela Underwood Fact checked by Angela Underwood LinkedIn Angela Underwood's extensive local, state, and federal healthcare and environmental news coverage includes 911 first-responder compensation policy to the Ciba-Geigy water contamination case in Toms River, NJ. Her additional health-related coverage includes death and dying, skin care, and autism spectrum disorder. Learn about our editorial process Print The classic triad of polycystic ovarian syndrome (PCOS) refers to a cluster of symptoms that commonly occur with the syndrome. These three symptoms are hirsutism, anovulation, and obesity. Anna Bizon / Creative RF / Getty Images The Classic Triad The classic triad is not a complete indicator for PCOS. Just because you only have two, one, or none of these symptoms does not mean you don't have PCOS. You can still have a diagnosis of PCOS without these features, but it is helpful for you to know that they may occur. Women with PCOS can experience a wide variety of effects, and here is a closer look at each of the symptoms of the classic triad: Hirsutism Hirsutism is excessive body hair in places such as the face, neck, chest, back, and toes.This symptom is caused by an excess of male hormones, or androgens, such as testosterone circulating in the bloodstream. For women, hirsutism can be extremely distressing. Fortunately, there are many hair removal options available today, from over-the-counter products to professional services and prescription medications. Each method has its advantages and disadvantages, and it's important for a woman to determine what works best for her and to speak with her healthcare provider beforehand. Anovulation Anovulation is when the body doesn't ovulate or release a mature egg. Ovulation normally occurs around 14 days before the next period. Anovulation results in irregular periods, missed periods, infertility, and abnormal bleeding. High levels of androgens and changes in luteinizing hormone and insulin levels can contribute to anovulation. If you are having regular monthly periods, it is most likely that you are ovulating. Your doctor can determine whether you are regularly ovulating by checking tests, including blood work or transvaginal ultrasound. Anovulation is treated in a few different ways. Managing stress, weight, and getting regular exercise can help reduce symptoms. Medications prescribed to help treat anovulation include: Clemiphene citrate (CC) Human chorionic gonadotropin (hCG) injection Follicle-stimulating hormone (FSH) injection Gonadotropin-releasing hormone (GnRH) agonists and antagonists injections If you are not trying to get pregnant, your practitioner will likely prescribe hormonal contraception, such as the pill, which regulates menstrual cycles. If you want to get pregnant, your healthcare provider may prescribe FSH, hCG, or GnRH. You will also want to work closely with a reproductive endocrinologist to develop the best plan for you. Obesity Extra body weight and PCOS often go hand in hand, however, experts aren't sure which came first: Does PCOS cause weight gain, or does weight gain cause PCOS? Women with extra body weight are more likely to develop PCOS, and data support some people are genetically predisposed to developing both conditions (there is a genetic link between the two). The close association between obesity and PCOS is supported by epidemiological data, revealing that between 38 percent to 88 percent of women with PCOS are either overweight or obese.A meta-analysis of relevant studies reported in the literature showed that women with obesity had an odds ratio of 2.77 for the development of PCOS compared with their non-obese counterparts. However, there are many women with PCOS who are not overweight or obese. Many women with PCOS follow a healthy diet and exercise plan but still have a weight problems. This isn't as simple as too many calories in and not enough out. There is something more complex at work. Insulin resistance is common among women with PCOS. This is a condition where the body produces extra insulin, but the cells cannot use it properly, resulting in high blood sugar. Insulin resistance can make losing weight difficult. Insulin resistance can occur in people with PCOS who are not overweight, but weight gain can make it worse. Other hormonal issues common with PCOS may also bring challenges to weight loss. Studies show losing as little as 5 to 10 percent of your body weight may reduce other PCOS symptoms, including anovulation. 7 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Radiopedia. Polycystic ovarian syndrome. Heidelbaugh JJ. Endocrinology update: hirsutism. FP Essent. 2016;451:17-24. PMID. 27936531 Osmosis. Anovulatory. Children's Hospital of Philadelphia. Managing Menstrution with Hormonal Contraceptives. Barber TM, Franks S. Obesity and polycystic ovary syndrome. Clin Endocrinol (Oxf). 2021 Oct;95(4):531-541. doi:10.1111/cen.14421 The Centers for Disease Control and Prevention. PCOS (Polycystic Ovary Syndrome) and Diabetes. UpToDate. Patient education: Polysystic Ovary Syndrome (PCOS) (Beyond the Basics). By Nicole Galan, RN Nicole Galan, RN, is a registered nurse and the author of "The Everything Fertility Book." See Our Editorial Process Meet Our Medical Expert Board Share Feedback Was this page helpful? Thanks for your feedback! What is your feedback? Other Helpful Report an Error Submit