PCOS Is Now PMOS: What the New Name Means for Women

A patient-friendly guide to polyendocrine metabolic ovarian syndrome

If you have previously been diagnosed with polycystic ovary syndrome (PCOS), you may start seeing a different name in health information and medical conversations: polyendocrine metabolic ovarian syndrome (PMOS).

The international name change was announced in May 2026. It does not mean that you have developed a new condition or that your previous diagnosis is no longer valid. PMOS is the new name for the condition previously known as PCOS.

The updated name is intended to describe the condition more accurately. PMOS can affect hormones, metabolism, menstrual cycles, skin, emotional wellbeing and fertility. It is not defined simply by ovarian “cysts”.

This guide explains why the name changed, what PMOS may involve and what the change could mean for people who already have a PCOS diagnosis.

Why was PCOS renamed PMOS?

For many years, the name “polycystic ovary syndrome” caused confusion. It placed attention on the ovaries and suggested that ovarian cysts were the central feature of the condition.

However, the structures often seen on ultrasound are usually small follicles rather than ovarian cysts in the usual medical sense. Some people with the condition do not have polycystic-appearing ovaries, while some people may have this ultrasound appearance without having the syndrome.

The name could therefore mislead patients and contribute to a narrow understanding of a condition that may have broader hormonal and metabolic effects. Following a long international consultation involving patients, clinicians, researchers and professional organisations, the name polyendocrine metabolic ovarian syndrome was selected.

What does PMOS mean?

The full name—polyendocrine metabolic ovarian syndrome—reflects several connected aspects of the condition:

• Polyendocrine refers to the involvement of more than one hormonal pathway.

• Metabolic recognises that insulin function, blood-sugar regulation and other aspects of metabolic health may be involved.

• Ovarian acknowledges the effects the condition may have on ovulation, menstrual cycles and reproductive health.

• Syndrome means that the condition may involve a collection of features that differ from one person to another.

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Not everyone with PMOS will experience every feature. Symptoms, health priorities and treatment needs can change across different stages of life.

Does the name change affect an existing PCOS diagnosis?

No. If you were previously diagnosed with PCOS, the change to PMOS does not automatically alter your diagnosis, medical history or treatment plan. It is a terminology change intended to improve understanding of the same condition.

During the transition, both names may continue to appear on medical records, websites, laboratory forms and educational resources. You may see wording such as “PMOS, previously known as PCOS”.

If you are uncertain about how the new terminology relates to your care, discuss it with your healthcare provider. Do not stop prescribed medication or change an existing management plan because the name has changed.

What are the possible features of PMOS?

PMOS can present differently between individuals. Possible features may include:

• Irregular, infrequent or absent menstrual periods

• Difficulty predicting ovulation

• Higher androgen levels or signs of androgen activity

• Increased facial or body hair

• Acne or oily skin

• Thinning scalp hair

• Difficulty conceiving for some patients

• Insulin resistance or other metabolic-health concerns

• Weight changes or difficulty managing weight

• Emotional or psychological effects, including anxiety, low mood or concerns about body image

  
  

These features can have several possible causes and do not confirm PMOS on their own. A clinical assessment is needed to interpret symptoms in the context of your age, medical history, examination and test results.

Do you need ovarian cysts to have PMOS?

No. Despite the former name, a person does not necessarily need ovarian cysts—or a polycystic ovarian appearance on ultrasound—to be diagnosed with the condition.

An ultrasound may form part of an assessment in some patients, but it is not the only consideration and may not be required in every situation. The approach to assessment also differs for adolescents.

This is one of the main reasons the terminology was changed: the condition is broader than what may or may not be visible on an ovarian ultrasound.

How is PMOS assessed?

There is no single test that confirms PMOS in every patient. Assessment generally involves reviewing symptoms and menstrual history, considering signs of androgen excess, and excluding other conditions that may cause similar features.

Depending on the individual, an assessment may include:

• A discussion about menstrual cycles, symptoms and medical history

• A physical examination where clinically appropriate

• Blood tests to assess hormones or exclude other possible causes

• Assessment of blood pressure and metabolic-health factors

• An ultrasound when it is clinically indicated

  
  

Diagnostic criteria should be applied by an appropriately qualified healthcare professional. Adolescents require particular care because menstrual irregularity and acne can also occur as part of normal pubertal development.

How can PMOS affect health beyond the menstrual cycle?

PMOS is often discussed in relation to periods and fertility, but its effects may extend beyond reproductive health. Some patients may have an increased likelihood of insulin resistance, type 2 diabetes, blood-pressure concerns or other cardiometabolic risk factors.

PMOS may also affect emotional wellbeing. Concerns about unpredictable periods, fertility, acne, hair growth, weight or delayed diagnosis can be distressing. Psychological symptoms deserve the same attention as physical symptoms.

This does not mean that every person with PMOS will develop these health concerns. Individual risk differs, which is why follow-up should be based on personal health history and clinical assessment rather than assumptions.

Does PMOS always cause infertility?

No. PMOS does not mean that pregnancy is impossible. Some people conceive without assistance, while others may experience difficulty because ovulation is irregular or does not occur consistently.

If you are planning a pregnancy, a preconception discussion can help review menstrual patterns, medication, general health and any factors that may affect pregnancy. Fertility assessment and treatment should be individualised.

How is PMOS managed?

There is no single management plan that suits everyone. Care depends on symptoms, health priorities, stage of life and whether pregnancy is currently desired.

A management plan may address:

• Menstrual-cycle regulation and protection of the uterine lining

• Acne or unwanted hair growth

• Metabolic health and relevant risk factors

• Nutrition, movement, sleep and other sustainable lifestyle measures

• Emotional wellbeing and psychological support

• Ovulation or fertility concerns

• Pregnancy planning and antenatal health

  
  

Treatment may include lifestyle support, medication or fertility-related care where appropriate. Decisions should be made with a healthcare professional after discussing the expected benefits, possible risks and your personal goals.

PMOS should not be reduced to weight alone. People across different body sizes can have the condition, and respectful, individualised care is important.

When should you speak to a healthcare professional?

Consider arranging an assessment if you experience persistent or concerning changes such as:

• Very irregular or absent menstrual periods

• New or increasing facial or body hair

• Persistent acne or scalp-hair thinning

• Difficulty conceiving

• Symptoms or test results suggesting a metabolic-health concern

• A previous PCOS diagnosis that has not been reviewed for some time

• Questions about how PMOS may affect pregnancy planning or long-term health

  
  

Seek urgent medical care for severe pain, heavy bleeding, fainting, breathing difficulty or any other symptom that feels urgent. These symptoms should not automatically be attributed to PMOS.

Frequently asked questions about PCOS and PMOS

Is PMOS a new disease?

No. PMOS is the new name for the condition previously known as PCOS. The name has changed; the underlying condition has not suddenly changed.

Do I need to be diagnosed again?

The terminology change alone does not mean that every person requires a new diagnosis. However, a review may be helpful if your symptoms have changed, your treatment goals are different or you have not had follow-up for some time.

Will healthcare professionals still understand the term PCOS?

Yes. Both terms are likely to be used during the transition. Including both—“PMOS, previously known as PCOS”—can help avoid confusion.

Does PMOS mean I have ovarian cysts?

Not necessarily. The former term created this misconception. An ovarian ultrasound appearance is only one possible feature and is not required in every patient.

Can PMOS be cured?

PMOS is generally managed as a long-term condition. Symptoms and priorities may change over time, and appropriate care can help address the features that affect you. Avoid claims or products promising a guaranteed cure.

Where can I discuss PMOS in Chatsworth or Durban?

Dr Vineshree Govender is a specialist obstetrician and gynaecologist practising at Life Chatsmed Garden Hospital in Chatsworth, Durban. You can contact the practice to discuss whether an assessment may be appropriate and what information to bring to your consultation.

Taking the next step

If you were previously told that you have PCOS, you do not need to panic about the new name. Keep a record of your symptoms, menstrual cycles, medication and recent test results, and raise any questions at your next healthcare appointment.

If you have symptoms but no diagnosis, an assessment can help determine whether PMOS or another condition may be contributing. A clear care plan should reflect your current symptoms, general health and personal priorities.

You can explore Dr Govender’s women’s health services, read the practice’s frequently asked questions or contact the practice for guidance.

Disclaimer

This article is provided for general informational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. Symptoms and management needs differ between individuals. Please consult Dr Vineshree Govender or another appropriately qualified healthcare professional for personalised guidance.