Polycystic ovary syndrome, widely known as PCOS, is officially being renamed after experts admitted the original term caused years of confusion for both patients and doctors. Under new international medical guidelines announced at a conference in Prague, the condition will now be called polyendocrine metabolic ovarian syndrome, or PMOS.
The name change follows a global consultation involving nearly 22,000 patients, researchers, and healthcare professionals. Specialists argued that the old name focused too heavily on the ovaries and incorrectly implied that all patients develop ovarian cysts. In reality, many women with the condition never develop cysts at all.
Medical experts now describe the disorder as a complex condition affecting the entire body rather than only reproductive health. PMOS can influence hormones, metabolism, fertility, mental wellbeing, and cardiovascular health. Dr. Melanie Cree from the University of Colorado said the new name better reflects the real experiences of patients and highlights the broader health impact of the disorder.
The condition affects up to 13 percent of women of reproductive age worldwide, with millions remaining undiagnosed. Symptoms may include weight gain, acne, excessive facial or body hair, painful or irregular periods, infertility, anxiety, and depression. Experts believe the misleading name contributed to delayed diagnoses because some doctors ruled out the condition when ovarian cysts were absent.
Researchers say insulin resistance plays a major role in the disorder. When the body struggles to respond properly to insulin, the pancreas produces more of the hormone, which can trigger excess testosterone production in the ovaries. These hormonal imbalances are believed to cause many common symptoms associated with the condition.
The updated terminology was published in The Lancet and introduced at the European Congress of Endocrinology. Experts expect the transition to the new name to take several years as hospitals and medical organizations gradually adopt the change. They hope the revised term will reduce stigma and encourage doctors to focus on overall health rather than fertility alone.
