What Is PMOS (Previously Called PCOS)?
Polyendocrine Metabolic Ovarian Syndrome, or PMOS, is one of the most common hormone-related conditions in the world. It affects about 1 in 8 women globally. You may know it by its old name, polycystic ovary syndrome (PCOS). In May 2026, experts officially changed the name to better reflect the full condition and how it affects the body.
Understanding PMOS
PMOS affects hormones, metabolism, and reproductive health. One of the main features is insulin resistance. This means the body has trouble using insulin the right way. Insulin resistance can happen in people of all body sizes. It also may raise the risk of type 2 diabetes, heart disease, and other conditions over time.
PMOS can affect skin, hair, mood, energy levels, and fertility. Because of this, it can impact many parts of daily life.
Common Signs and Symptoms
PMOS can look different for everyone. Common signs may include:
- Irregular or missed periods
- Acne or oily skin
- Extra hair growth on the face or body, or thinning hair on the scalp
- Weight changes or trouble losing weight
- Difficulty getting pregnant
- Mood changes, low energy, or anxiety
Because symptoms can vary so much, PMOS is sometimes missed or diagnosed later in life.
Why the Name Changed
The old name focused on cysts on the ovaries, but many people with the condition do not actually have cysts. The new name helps show that PMOS affects the whole body, not just reproductive health. The goal is to improve understanding, diagnosis, and care.
Lifestyle Habits That Can Help
There is no cure for PMOS, but healthy habits can make a big difference.
- Support balanced blood sugar. Build meals with whole foods, protein, fiber, healthy fats, and complex carbs. Focus on habits you can maintain long term.
- Move your body. Walking, strength training, cycling, or yoga can help improve insulin sensitivity.
- Manage stress. Stress may make symptoms worse. Practices like meditation, deep breathing, therapy, or mindfulness can help support emotional wellbeing.
- Get healthy sleep. Sleep problems are more common with PMOS. A regular sleep routine can support hormone and metabolic health.
- Lean on support. PMOS can affect mental and emotional health. Support from friends, family, healthcare providers, or support groups can help.
PMOS is common, complex, and different for everyone. Small lifestyle habits, along with medical care, can help improve both daily wellbeing and long-term health with PMOS.
References:
- Teede, H. J., Khomami, M. B., Morman, R., et al. (2026). Polyendocrine metabolic ovarian syndrome, the new name for polycystic ovary syndrome: A multistep global consensus process. The Lancet. Published online May 12, 2026. doi: 10.1016/S0140-6736(26)00717-8
- Teede, H. J., Tay, C. T., Laven, J., et al. (2023). Recommendations from the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome. Human Reproduction, 38(9), 1655–1679. doi: 10.1093/humrep/dead156
- Teede, H., Deeks, A., & Moran, L. (2018). Polycystic ovary syndrome: A complex condition with psychological, reproductive and metabolic manifestations that impacts on health across the lifespan. BMC Medicine, 16(1), 1–12. doi: 10.1186/s12916-018-1113-6
**For information purposes only. Always consult a healthcare, financial, investing, tax, or legal professional, as this article is not a comprehensive resource on these topics, should not be relied upon, and should not be considered medical, financial or legal advice.
