PCOS has a new name. In May 2026, an international group of clinicians and researchers published a global consensus in The Lancet renaming Polycystic Ovary Syndrome to PMOS, Polyendocrine Metabolic Ovarian Syndrome. Nothing changes about your diagnosis today: the criteria are the same, your notes still say PCOS for now, and no new test is needed. What has changed is the thinking behind the name, and that matters for how you manage symptoms going forward. Here is what the rename actually means, in plain terms.