In May 2026, an international panel of experts proposed renaming Polycystic Ovary Syndrome (PCOS) to Polyendocrine Metabolic Ovarian Syndrome (PMOS). While the condition itself has not changed, the new name reflects a better understanding of what is happening inside the body.

For many years, PCOS was thought to be mainly a problem with the ovaries. However, doctors now know that it is much more than that. Many women with PCOS do not have ovarian cysts, and some women with ovarian cysts do not have PCOS. The condition also affects hormones, metabolism, and the body's use of insulin, which can impact overall health.

Whether you know it as PCOS or PMOS, understanding the condition is the first step to manage it. With early diagnosis, the right treatment, and healthy lifestyle habits, you can manage the symptoms and lower the risk of future health problems.

Around the world, 1 in 8 women are affected by PMOS (formerly known as PCOS), making it one of the most common hormonal and metabolic disorders in women. In India, the burden is also high, with increasing diagnoses reported in recent years due to changing lifestyles, rising obesity rates, and greater awareness.

Why Was PCOS Renamed to PMOS?

The updated name better reflects the complexity of the condition.

  • Polyendocrine means that multiple hormone-producing glands, including the ovaries, pancreas, pituitary gland, and adrenal glands, are involved.
  • Metabolic highlights the important role of insulin resistance and metabolic health.
  • Ovarian acknowledges that the ovaries are affected, but they are only one part of the condition.

Rather than being only a reproductive disorder, PMOS is now recognised as a condition that affects hormones, metabolism, and reproductive health together.

What Causes PMOS?

The exact cause of PMOS is not fully understood, but experts believe it develops because of a combination of genetics, hormonal changes, insulin resistance, and inflammation.

Insulin Resistance: It is one of the key factors behind PMOS. Insulin helps move sugar (glucose) from the blood into the body's cells, where it is used for energy. In women with PMOS, the body's cells become less responsive to insulin. To compensate, the pancreas produces more insulin.

When insulin levels stay high, the ovaries may produce more male hormones (androgens), such as testosterone, than the body needs. These hormones interfere with normal ovulation and contribute to many of the common symptoms of PMOS, including irregular periods, acne, excess facial or body hair, and difficulty losing weight.

Hormonal Imbalance: Hormones that regulate the menstrual cycle work in a carefully balanced way. In PMOS, this balance is disrupted, making ovulation irregular or preventing it altogether. Without regular ovulation, menstrual cycles become unpredictable, and fertility may be affected.

Chronic Low-Grade Inflammation: Many women with PMOS have ongoing low-grade inflammation. While experts are still learning more about the connection, inflammation appears to increase androgen production and may worsen insulin resistance, creating a cycle that contributes to ongoing symptoms.

Genetics: PMOS often runs in families. If your mother, sister, or another close family member has it, you may have a higher chance of developing it as well. But having a family history doesn't mean you'll definitely get PMOS. It simply means your risk may be higher, especially along with other factors like hormones and lifestyle.

Common Symptoms of PMOS

PMOS symptoms can be different for everyone. Some women have only mild symptoms, while others may experience several symptoms that affect their periods, overall health, and emotional well-being.

Irregular or Missed Periods: Irregular menstrual cycles are one of the most common symptoms. Periods may occur less frequently, become unpredictable, or stop altogether because ovulation does not happen regularly.

Acne and Excess Hair Growth: Higher levels of male hormones can cause stubborn acne, oily skin, and extra hair growth on the face, chest, stomach, or back. Some women may also notice hair thinning or hair loss on the scalp.

Dark, velvety patches of skin around neck, underarms, or groin, known as acanthosis nigricans, can also occur and may indicate insulin resistance.

Difficulty Losing Weight: Many women with PMOS find it challenging to lose weight despite eating well and staying physically active. Hormonal changes and insulin resistance can make the body store fat more easily and make weight loss slower than expected.

Fatigue and Mood Changes: Persistent tiredness, poor sleep, brain fog, anxiety, and depression are commonly reported by women with PMOS. These symptoms may result from hormonal imbalances, insulin resistance, inflammation, or the emotional impact of living with a chronic condition.

Difficulty Getting Pregnant: Because ovulation is often irregular, PMOS can make it more difficult to conceive. However, many women with PMOS have successful pregnancies, either naturally or with a gynaecologist consultation and medical support when needed.

How Is Polyendocrine Metabolic Ovarian Syndrome Diagnosed?

There is no single test that confirms PMOS. Doctors make the diagnosis by considering your symptoms, medical history, and test results.

Your healthcare provider may recommend:

  • A review of your menstrual and medical history
  • A physical examination
  • Blood tests to see if your hormone, blood sugar, and insulin levels are normal.
  • An ultrasound to examine the ovaries, when appropriate

Because PMOS also affects metabolic health, regular monitoring is an important part of diagnosis and ongoing care. Your doctor may recommend checking:

  • Blood pressure
  • Blood sugar levels
  • Cholesterol levels
  • Body weight and waist circumference

These tests help identify early signs of metabolic syndrome and other long-term health risks, allowing treatment to begin before complications develop.

Treatment Options for Polyendocrine Metabolic Ovarian Syndrome

Although there is no cure for PMOS, the condition can be managed well with the right combination of lifestyle changes, regular monitoring, and medical treatment.

Healthy Eating: A balanced, nutrient-rich diet plays an important role in managing PMOS by improving insulin sensitivity and supporting hormone balance.

Focus on eating plenty of vegetables, fruits, whole grains, lean proteins, healthy fats, and fibre-rich foods while limiting highly processed foods and added sugars. Rather than following restrictive diets, aim for healthy eating habits that you can maintain over the long term.

For women who are overweight, even a 5–10% reduction in body weight can help improve insulin resistance, regulate menstrual cycles, and increase the chances of ovulation.

Stay Physically Active: Regular exercise benefits women with PMOS in many ways. It improves insulin sensitivity, supports weight management, helps regulate hormones, and promotes better cardiovascular health.

Aim for at least 150 minutes of moderate-intensity physical activity each week such as brisk walking, cycling, swimming, or dancing. Strength training two or more days a week can also help improve muscle mass and metabolism.

Prioritise Good Sleep: Poor sleep can worsen insulin resistance and hormonal imbalance. Most adults should aim for 7 to 9 hours of quality sleep each night. Maintaining a regular sleep schedule and managing stress can also help improve overall well-being.

Medications: A doctor may recommend medications based on your individual symptoms and health goals. These may include medicines to:

  • Improve insulin sensitivity
  • Regulate menstrual cycles
  • Reduce acne and excess hair growth
  • Support ovulation if pregnancy is planned

Why Managing Polyendocrine Metabolic Ovarian Syndrome Early Matters

PMOS is not just a condition that affects periods or fertility. Because it also affects the way the body regulates hormones and metabolism, it can increase the risk of developing metabolic syndrome.

Metabolic syndrome is a group of health conditions that occur together, which includes:

  • Increased waist circumference (central obesity)
  • High blood pressure
  • High blood sugar caused by insulin resistance
  • Unhealthy cholesterol or triglyceride levels

If left unmanaged, this can increase the risk of several long-term health problems, including:

  • Type 2 diabetes
  • Heart disease
  • Stroke
  • Sleep apnoea
  • Anxiety and depression
  • Endometrial (uterine) cancer, particularly in women with long-standing irregular or absent periods

The good news is that early diagnosis, healthy lifestyle changes, regular exercise, balanced nutrition, and routine health check-ups can significantly reduce many of these risks. Managing PMOS is not only about improving symptoms today but also about protecting your long-term health.

How PB Health Can Support You

Managing PMOS often requires ongoing care rather than a single consultation. Because the condition affects hormonal, metabolic, and reproductive health, a coordinated approach can make a meaningful difference.

At PB Health, MG Road, Gurgaon our experienced doctors work with you to understand your symptoms, assess underlying metabolic risks, and create a personalised care plan. From diagnostic evaluation and lifestyle guidance to long-term follow-up, our team supports you at every stage of your health journey, helping you manage PMOS with confidence and reduce the risk of future complications.

Conclusion

The proposed change from PCOS to PMOS reflects a broader understanding of the condition, emphasising that it affects hormones, metabolism, and overall health, not just the ovaries. While the name may change, the condition remains the same.

PMOS is manageable with early diagnosis, a healthy lifestyle, regular monitoring, and appropriate medical care. If you experience symptoms such as irregular periods, persistent acne, excess hair growth, or difficulty conceiving, consult your healthcare provider. Early diagnosis and treatment can improve symptom management and reduce the risk of long-term complications.