PCOS Is Now PMOS: What Does the Name Change Mean?

You may have heard of Polycystic Ovary Syndrome (PCOS). Earlier this year, the condition got a new name: Polyendocrine Metabolic Ovarian Syndrome, or PMOS. The name change has been endorsed by major professional organizations including the Endocrine Society as a means of better reflecting what we now understand about this complex condition which affects much more than the ovaries.

PMOS is common, affecting approximately 1 in 8 women (ASRM). Yet many women may not realize they have the condition. Among women of reproductive age, PMOS is a leading cause of infertility and the most common cause of anovulatory infertility.

So why change the name?

The term polycystic ovary syndrome gives the impression that ovarian cysts are the defining feature of the disorder. But the condition is much more complex. PMOS can affect reproductive function, hormone levels, metabolism, skin and hair, sleep, and mental health. And despite the name, ovarian cysts are not required for a diagnosis. 

In adults, PMOS is diagnosed when two of the following three features are present (Monash University):

• Elevated androgen hormone levels, which may cause symptoms such as acne or increased facial or body hair
• Irregular or absent ovulation or irregular menstrual cycles
• Polycystic ovaries on ultrasound or an elevated anti-Müllerian hormone (AMH) level

For many women, one of the least recognized aspects of PMOS is its impact on mental health.

What are the symptoms of PMOS?

PMOS can look very different from one woman to another. Some women have relatively mild physical symptoms, while others experience significant reproductive, metabolic, or emotional symptoms.

Common features include:

• Irregular or absent menstrual periods
• Difficulty becoming pregnant because of irregular or absent ovulation
• Higher androgen levels, which may cause acne, increased facial or body hair, or thinning of the hair on the scalp
• Metabolic changes, including insulin resistance and an increased risk for type 2 diabetes
• Changes in weight, although PMOS can occur in women at any body weight
• Sleep problems, including an increased risk of obstructive sleep apnea
• Changes in mood and emotional well-being, including depression and anxiety

Importantly, you do not need to have all of these symptoms to have PMOS. The condition can present differently at different stages of life (Endocrine Society).

PMOS and Mental Health

For many women, the emotional and psychological effects of PMOS can be just as important as the reproductive or metabolic symptoms.

The 2023 international evidence-based guideline reviewed 80 studies examining depression and anxiety in women with PMOS/PCOS. Women with PMOS had approximately 2.6 times the odds of depression and 2.7 times the odds of anxiety compared with women without the condition. The guideline therefore recommends routine screening for depression and anxiety in women with PMOS (Monash University).

A 2026 meta-analysis provides some perspective on just how common depressive symptoms may be. Across 35 studies involving more than 5,800 women, the prevalence of depressive symptoms were reported in about 42% of women with PMOS compared with 14% without this disorder when measured with the Beck Depression Inventory.

Anxiety symptoms are also common. In the same 2026 meta-analysis, about 48% of women with PMOS had anxiety symptoms, compared with 31% of controls. 

There is also emerging evidence for associations between PMOS and other psychiatric conditions. A 2024 systematic review and meta-analysis found that women with PMOS had approximately twice the odds of having bipolar disorder.

Eating disorders and disordered eating may also be more common in women with PMOS. A systematic review and meta-analysis involving more than 28,000 women with PMOS found higher odds of eating disorders overall, including binge-eating disorder and bulimia nervosa. Notably, the association with disordered eating was seen in women across different BMI categories. 

Research is also exploring possible associations between PMOS and conditions such as ADHD and schizophrenia, but the evidence for these conditions is less established.

What Does This Mean for You?

If you have PMOS, it is important to know that depression and anxiety are common conditions that occur more frequently in women with PMOS.

That does not mean that everyone with PMOS will develop depression or anxiety. But it does mean that your mental health deserves to be part of the conversation when you are being treated for PMOS.

If you are experiencing persistent sadness, loss of interest or pleasure, excessive worry, changes in sleep or appetite, difficulty functioning, or other changes in your mood, talk with your healthcare provider. Screening questionnaires can help identify symptoms of depression or anxiety, but a positive screen should be followed by a more complete clinical assessment.

Treatment may include psychotherapy, medication, or a combination of the two, depending on the type and severity of symptoms and your individual circumstances. The 2023 international guideline specifically recommends psychological evaluation and treatment when indicated (Monash University).

Exercise and lifestyle changes may improve mental health

Lifestyle interventions are an important part of PMOS treatment, and there is increasing interest in whether they may also benefit mental health.

A 2026 systematic review and meta-analysis of seven randomized controlled trials found that structured exercise was associated with a significant reduction in depressive symptoms in women with PMOS/PCOS. The researchers cautioned, however, that the number of studies and participants was small, so more research is needed. (PubMed)

Regular physical activity may therefore be one useful component of a treatment plan. But it is important to remember that exercise is not a substitute for treatment of a major depressive or anxiety disorder. The same is true of other lifestyle changes: they can support overall health and well-being, but they should complement, not replace, evidence-based mental health treatment.

The Bottom Line

PMOS is more than a reproductive disorder. It is a complex condition that can affect the reproductive system, metabolism, skin and hair, sleep, and mental health.

For women with PMOS, depression and anxiety are common enough that mental health should be routinely discussed as part of PMOS care. If you are experiencing symptoms of depression, anxiety, disordered eating, or another mental health condition, bringing these concerns to your healthcare provider is an important part of getting comprehensive care.

And perhaps this is one of the most meaningful things about the new name: PMOS recognizes that the condition is about much more than the ovaries.