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PCOS TO PMOS: LOOKING BEYOND THE OVARY There has to be a shifting our understanding…By Dr Amit Dias, MD
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PCOS TO PMOS: LOOKING BEYOND THE OVARY There has to be a shifting our understanding…By Dr Amit Dias, MD

May 23- May 29, 2026, MIND & BODY, HEART & SOUL May 22, 2026 , by

ON May 12, 2026 The Lancet announced that Polycystic Ovary Syndrome (PCOS) would be renamed Polyendocrine Metabolic Ovarian Syndrome (PMOS). In this article we simplify the concept for you, explaining the scientific basis for the change, and emphasises the importance of holistic care for women’s health.

I AM sure most of you have heard of PCOS by now, though many may still have only a sketchy idea of what it really means. For years, millions of women were told they simply had a “cyst problem” and were advised to lose weight, take hormonal pills, or “wait until marriage” for their menstrual irregularities to settle.
However, science now tells us that Polycystic Ovary Syndrome (PCOS) is far more than just an ovarian disorder. In a landmark move led by global experts and endorsed by international medical bodies, the condition is now being renamed Polyendocrine Metabolic Ovarian Syndrome (PMOS) — a term that better reflects its true nature as a complex hormonal and metabolic disease.

The Science:
 The change is not merely semantic. It marks a major shift in our understanding of one of the commonest endocrine disorders affecting women worldwide.
According to the World Health Organization (WHO), PMOS/PCOS affects approximately 8–13% of women of reproductive age, and nearly 70% remain undiagnosed globally. In India, the burden appears even higher in urban settings, with studies suggesting prevalence rates ranging from 10% to over 20% depending on diagnostic criteria and population studied.

Why Was the Name Changed?
 The term “polycystic ovary syndrome” has always been problematic. Firstly, many women with the condition do not actually have ovarian cysts. Secondly, the “cysts” seen on ultrasound are not true cysts but immature follicles. Thirdly, the old name focused excessively on the ovaries while ignoring the underlying hormonal, metabolic, inflammatory and psychological disturbances.
The new term — Polyendocrine Metabolic Ovarian Syndrome — emphasises that the condition involves:

Multiple hormonal systems (polyendocrine)
 Significant metabolic dysfunction including insulin resistance (metabolic)
Ovarian involvement, though not exclusively (ovarian syndrome)
This reclassification helps clinicians and patients understand that PMOS is not simply a fertility issue but a lifelong metabolic and endocrine disorder with systemic implications.

What Exactly Happens in PMOS?
 At the heart of PMOS lies hormonal imbalance and insulin resistance.
In many patients, the body produces excess insulin because the cells do not respond effectively to it. This “insulin resistance” stimulates the ovaries to produce higher levels of androgens or male-type hormones such as testosterone. The result is irregular ovulation, menstrual disturbances, acne, unwanted facial hair growth, scalp hair thinning, and weight gain.
The condition is influenced by genetics, lifestyle, obesity, chronic inflammation, stress, sleep disturbances, and environmental factors. There is increasing evidence that PMOS begins during adolescence and may continue throughout reproductive life and beyond.

How Can One Recognise PMOS?
 The presentation varies widely from person to person. Some women may be overweight, while others are lean. Some may have severe acne, while others present only with infertility.

Common symptoms include:
 — Irregular or absent menstrual periods
— Excess facial or body hair (hirsutism)

Acne or oily skin
 — Weight gain, especially around the abdomen
— Difficulty conceiving
— Hair thinning or scalp hair loss
— Darkening of skin folds around the neck or armpits (acanthosis nigricans)
— Mood disorders, anxiety, or depression
— Fatigue and poor sleep

The diagnosis is generally based on the Rotterdam criteria, where two out of three features are present:
 — Irregular ovulation or menstrual cycles
— Excess androgen activity (clinical or biochemical)
— Polycystic ovaries on ultrasound

PCOS vs PCOM: Understanding the Difference
 A common source of confusion is the distinction between PCOS/PMOS and PCOM (Polycystic Ovarian Morphology).
PCOM refers only to the appearance of ovaries on ultrasound showing multiple small follicles. It is merely a radiological finding and can occur in healthy women, especially adolescents.
PMOS/PCOS, on the other hand, is a clinical syndrome involving hormonal and metabolic abnormalities along with symptoms.

Dispelling Common Myths
Myth 1: “Only overweight women get PMOS.”
False. Lean women can also develop PMOS due to hormonal and genetic factors.

Myth 2: “It is just a cosmetic problem.”
No. PMOS increases the risk of diabetes, hypertension, heart disease, infertility, and endometrial cancer.

Myth 3: “Pregnancy cures PMOS.”
Pregnancy may temporarily regulate cycles in some women, but the metabolic tendency persists.

Myth 4: “Irregular periods in teenagers are always normal.”
While some irregularity is expected after menarche, persistent abnormalities should not be ignored.

Myth 5: “Having cysts means surgery is needed.”
Most women do not require surgery. Treatment is primarily medical and lifestyle-based.

What Are the Long-Term Complications?
 PMOS is increasingly recognised as a multisystem disorder.
Potential complications include:
— Type 2 diabetes mellitus
— Metabolic syndrome
— Obesity
— Fatty liver disease
— Infertility
— Miscarriage and pregnancy complications
— Hypertension
— Cardiovascular disease
— Sleep apnoea
— Anxiety and depression
—Endometrial hyperplasia and cancer
Women with PMOS often face psychological distress due to body image issues, infertility concerns, acne, and social stigma. Mental health screening is therefore an essential part of care.

The Treatment: A Holistic and Lifelong Approach
 There is currently no permanent “cure” for PMOS, but the condition can be effectively managed.

  1. Lifestyle Modification — The Foundation
     Lifestyle intervention remains the cornerstone of treatment.
    This includes:
    — Regular physical activity
    — Weight reduction where necessary
    — Balanced low-glycaemic diet
    — Adequate sleep
    — Stress management
    —Reducing ultra-processed foods and sugary beverages
    Even a 5–10% reduction in body weight can significantly improve ovulation and metabolic health.
  2. Dietary Measures
     — Diet should focus on:
    — Whole grains
    — High-fibre foods
    — Fruits and vegetables
    — Lean proteins
    — Healthy fats
    — Reduced refined sugars
    — Crash dieting should be avoided.
  3. Medications
     Treatment is individualised depending on symptoms.
    Common medications include:
    — Hormonal contraceptive pills for cycle regulation
    — Metformin for insulin resistance
    — Anti-androgen drugs for hirsutism
    — Ovulation induction agents for infertility
    — Acne treatments where required
    Newer medications such as GLP-1 receptor agonists are also being explored in selected patients with obesity and metabolic dysfunction.
  4. Fertility Treatment
     Many women with PMOS can conceive naturally after lifestyle modification and ovulation correction. Others may require ovulation induction, intrauterine insemination (IUI), or IVF.

Frequently Asked Questions
 Here are answers to some of the frequently asked questions that we often get in our OPD.

Can PMOS be prevented?
 While genetics cannot be changed, healthy lifestyle habits from adolescence may reduce severity and complications.

Is PMOS hereditary?
 There is strong familial clustering, suggesting a genetic predisposition.

Can women with PMOS lead normal lives?
 Absolutely. Early diagnosis and proper management allow most women to live healthy, productive lives.

Should every woman with irregular periods undergo testing?
 Persistent menstrual irregularity, excessive hair growth, obesity, acne, or infertility should prompt medical evaluation.

A Public Health Priority
 The renaming of PCOS to PMOS is more than a scientific update — it is a wake-up call.
Awareness among adolescents, parents, teachers, and healthcare providers is crucial. Early intervention can prevent long-term complications and improve quality of life.
The challenge today is not merely diagnosing PMOS, but ensuring that women are heard, validated, and treated holistically rather than symptomatically.
As science evolves, so must our language, our healthcare systems, and our attitudes toward women’s health.

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