PCOS has been rebranded. After years of debate, the condition affecting 1 in 8 women globally is now known as Polyendocrine Metabolic Ovarian Syndrome (PMOS). The old name was misleading, experts say, because it wrongly suggested that ovarian cysts are the central feature. In reality, the condition involves hormonal disruptions that lead to insulin resistance, weight gain, and issues beyond reproduction. The new name aims to shift focus to the metabolic and endocrine aspects of the syndrome.

Dr. Helena Teede, lead author of the renaming proposal, said the change corrects 'a fundamental inaccuracy' and should improve diagnosis and patient understanding. Studies show that women with PMOS are not more likely to have pathological ovarian cysts. Instead, they often have underdeveloped eggs that accumulate due to hormonal imbalances. The syndrome was originally called Stein-Leventhal syndrome after the doctors who first identified it.