PCOS is now polyendocrine metabolic ovarian syndrome (PMOS). The name changed in May 2026 following 14 years of global research published in The Lancet. The old name was clinically inaccurate. The structures seen on ultrasound were never cysts. They were arrested follicles caused by hormonal disruption. PMOS is a complex hormonal and metabolic condition affecting 1 in 8 women worldwide.

If you have been managing hormonal symptoms without real answers, this guide explains the biological connection most women are never told about. Your gut bacteria directly regulate how much oestrogen circulates in your body, and when that system is out of balance, no amount of hormone-focused support will get to the root of what is driving your symptoms. Download this free guide to understand how the gut and hormones are connected, which conditions are linked to disrupted oes