PCOS officially has a new name, PMOS. For years, millions of women around the world have known the hormonal condition called polycystic ovary syndrome (PCOS). PCOS is a common hormonal disorder affecting one in eight women of reproductive age worldwide. However, medical experts have worked for more than one decade to rename it Polyendocrine Metabolic Ovarian Syndrome (PMOS).
The consensus was published in The Lancet on May 12, 2026, and endorsed by over 56 major academic, clinical, and patient organizations.
Experts believe the old name does not fully capture the complexity of the condition and usually contributes to delayed diagnosis.
Here are 5 important things to know about the change from PCOS to PMOS.
1. PCOS does not always involve ovarian cysts
One of the biggest reasons behind the proposed name change is that the name was misleading. Many women diagnosed with PCOS do not actually have cysts on their ovaries.
The term “polycystic” has long been considered misleading because the condition is much more than ovarian cysts. Some women may experience irregular periods, acne, excessive hair growth, infertility, or weight gain without having cysts at all.
Experts believe the old name creates confusion for patients and even healthcare providers.
2. The change was spearheaded by Professor Helena Teede
The push to rename PCOS to PMOS was spearheaded by a global coalition of medical experts, researchers, endocrinologists, patient advocacy groups, and women living with the condition themselves.
One of the leading names behind the name change was Professor Helena Teede, an endocrinologist at Monash University and director of the Monash Centre for Health Research & Implementation. She chaired the steering group that led the years-long effort to change the name.
The renaming process reportedly took about 14 years, including more than 22,000 survey responses from healthcare professionals and patients worldwide and also 56 health organizations across six continents, including the Endocrine Society.
3. It is more than a reproductive disorder
PMOS (Polyendocrine Metabolic Ovarian Syndrome) was chosen because experts believe the condition affects many parts of the body, not just the ovaries.
Many women with PCOS also struggle with health issues like the following:
- Weight gain
- High blood sugar
- Insulin resistance
- High cholesterol
- Increased risk of diabetes and heart disease
The new name helps people understand that the condition is both a hormonal and metabolic disorder, not just a reproductive problem.
4. It could help women get diagnosed earlier
Many women spend years struggling with symptoms before receiving a diagnosis because PCOS often presents differently from person to person.
By emphasizing the metabolic component, PMOS may encourage doctors to look beyond reproductive symptoms and identify the condition earlier.
An earlier diagnosis can help reduce long-term complications such as diabetes, infertility, and heart disease.
ALSO READ: All You Should Know About Polycystic Ovarian Syndrome(PCOS), A Disease Silently Affecting Many Women
5. The symptoms remain the same
Although the name may change, the symptoms associated with the condition remain largely unchanged.
Common symptoms include irregular menstrual cycles, difficulty getting pregnant, weight gain, acne, excess facial or body hair, mood changes, and fatigue.
It has no known cure yet, but it is highly manageable.