In simple terms: Polyendocrine Metabolic Ovarian Syndrome, the new official name for the condition long known as PCOS.
Why it matters for PCOS
PMOS stands for Polyendocrine Metabolic Ovarian Syndrome, the new name announced in May 2026 for the same condition as PCOS. The name tries to correct the misunderstanding that the condition is mainly about ovarian cysts. In clinical reality, many patients experience a mix of hormonal, metabolic, skin, menstrual, fertility, weight, and mental-health features, so the new name emphasises that assessment should look beyond ultrasound alone.
PCOS will still be used for a long time because readers, doctors, older records, and web searches already know it. Do not worry if a referral letter or blood result still says PCOS, because both terms refer to the same condition. For more detail, read PCOS is now called PMOS and what is PCOS.
This glossary is education, not diagnosis. For your own situation, ask a doctor or pharmacist.