No Ovarian Cysts? You Could Still Have PMOS (Formerly Known as PCOS)

September is PCOS Awareness Month, a time to raise awareness about a condition that affects millions of women worldwide and to challenge the misconceptions that can make hormonal health difficult to understand.

At Diva’Me, we believe conversations about feminine health should be open, informed, and free from shame. From understanding your cycle to feeling more comfortable during your period, knowing what is happening in your body can help you feel more confident about your health.

And when it comes to PCOS, now known as PMOS (Polyendocrine Metabolic Ovarian Syndrome), there is one misconception we need to clear up: You do not need to have ovarian cysts to have PMOS.

Yes, you read that right.

The condition formerly known as PCOS was renamed PMOS in 2026 to better reflect its complex hormonal and metabolic nature. The new name also helps move the conversation beyond the idea that the condition is simply about having “cysts” on your ovaries.

So, what if your ultrasound shows completely normal ovaries?

Could you still have PMOS? Absolutely. And understanding why starts with looking beyond the scan.

What Is PMOS (Formerly Known as PCOS)?

Polyendocrine Metabolic Ovarian Syndrome (PMOS) is a long-term condition involving hormonal and metabolic changes that can affect how the body ovulates, responds to hormones, regulates metabolism, and functions across several systems.

The condition was previously called PolyCystic Ovary Syndrome (PCOS).

The word “polycystic” created the impression that ovarian cysts were the defining feature. However, modern diagnostic criteria show that ovarian appearance is only one possible part of the diagnostic picture.

In adults, PMOS can be diagnosed when two of three key features are present:

Diagnostic feature	What it can mean
Hyperandrogenism	Higher-than-usual androgen activity, which may cause acne, excess facial or body hair, or hair thinning
Ovulatory dysfunction	Irregular, infrequent, or absent ovulation, often reflected by irregular periods
Polycystic ovaries or elevated AMH	Certain ovarian features on ultrasound or elevated anti-Müllerian hormone levels

This means you do not need to have polycystic-looking ovaries to meet diagnostic criteria if the other required features are present.

So, Can You Have PMOS Without Ovarian Cysts?

Yes. This is one of the most important things to understand about PMOS.

A clear ultrasound does not automatically mean everything is hormonally normal.

For adults, healthcare professionals assess PMOS using a combination of symptoms, menstrual history, hormone-related signs, blood tests, and sometimes ultrasound or AMH testing rather than relying on an ultrasound alone.

In fact, the international name-change process highlighted that the old focus on “cysts” could contribute to misunderstanding, delayed diagnosis, and inadequate care.

Think of it this way:

No cysts ≠ no PMOS.

Your ovaries are only one piece of a much bigger hormonal picture.

What Symptoms Can PMOS Cause?

PMOS can look different from one person to another. That is one reason it can sometimes take time to recognise.

Common features can include:

• Irregular or unpredictable periods

• Infrequent periods

• Problems with ovulation

• Acne or oily skin

• Increased facial or body hair

• Thinning hair on the scalp

• Changes in weight or difficulty managing weight

• Metabolic changes, including insulin-related problems

• Fertility difficulties

• Psychological symptoms or changes in emotional well-being

Not everyone experiences all of these symptoms.

PMOS is a heterogeneous condition, meaning its symptoms and severity can vary significantly between individuals. International guidelines also recognise reproductive, metabolic, psychological, skin, and broader health impacts.

That is why your experience cannot always be explained by what an ultrasound shows.

What Does a Normal Ultrasound Actually Tell You?

An ultrasound can provide useful information about your reproductive organs, but it is not a complete hormonal health check.

If your scan does not show polycystic ovarian morphology, your healthcare professional may still look at other diagnostic features, including your menstrual cycle pattern and signs of hyperandrogenism.

For adults, current guidelines also recognise AMH (anti-Müllerian hormone) as an alternative to ultrasound for assessing the ovarian component of diagnosis.

However, AMH and ultrasound are not recommended for diagnosing PMOS in adolescents within eight years of their first period, because normal puberty can produce overlapping findings.

Your scan is a piece of the puzzle, not the entire puzzle.

Your Period Is Part of the Bigger Picture

Your period can provide important clues about your reproductive and hormonal health. Changes in cycle length, frequency, flow, or regularity can sometimes indicate that something is worth discussing with a healthcare professional.

That is why cycle tracking can be a useful tool. Keeping a record of when your period starts, how long it lasts, and any noticeable symptoms can help you understand your personal pattern and provide useful information during a medical consultation.

And while you are paying closer attention to your cycle, you should not have to sacrifice comfort.

Diva’Me Period Underwear is designed to give you comfortable, reusable protection during your period, helping you feel more confident on lighter or heavier flow days. Instead of constantly worrying about leaks or changing disposable products, period underwear can become a practical part of your period routine.

Because understanding your cycle is important but feeling comfortable through it matters too.

How Is PMOS Diagnosed?

There is no single “PMOS test.”

Instead, diagnosis involves looking at the whole picture.

A healthcare professional may consider:

1. Your menstrual history: including cycle frequency and regularity.

2. Signs of androgen excess: such as acne, excess hair growth, or scalp hair thinning.

3. Blood tests: to assess relevant hormones and rule out other conditions.

4. Ultrasound: when appropriate.

5. AMH testing: which may be used as an alternative to ultrasound in adults.

6. Other possible causes: because several conditions can cause irregular periods or similar symptoms.

The 2026 PMOS guideline specifically recommends considering other diagnoses, including thyroid disease, high prolactin, and non-classic congenital adrenal hyperplasia, when assessing someone for PMOS.

This is why getting a diagnosis should involve a qualified healthcare professional rather than an ultrasound result or a symptom checklist alone.

What Should You Do If You Think You Have PMOS?

If your periods have become consistently irregular, you are experiencing new hormonal symptoms, or something about your cycle does not feel right, start by tracking what is happening.

Record:

• When your period starts and ends

• How frequently your periods arrive

• Changes in flow

• Acne or skin changes

• New or increased facial/body hair

• Scalp hair changes

• Other symptoms you notice

Then take that information to a doctor, gynaecologist, endocrinologist, or other appropriately qualified healthcare professional.

You do not need to wait until an ultrasound shows “cysts” before asking questions.

PMOS Is Bigger Than Your Ovaries

The biggest misconception about PMOS (formerly known as PCOS) is right there in the old name.

You can have PMOS without having polycystic-looking ovaries on an ultrasound.

The condition involves much more than ovarian appearance. Hormonal, reproductive, metabolic, skin, and psychological features can all form part of the picture.

So if your scan says “normal ovaries” but your periods, hormones, or other symptoms are telling you that something is not quite right, don't dismiss your concerns.

Your body is more than one scan. Understanding your cycle starts with knowing your body and feeling comfortable through every flow starts with Diva’Me.

Explore Period Fashion Collection at idivame.com and discover period wear designed to help you move through your cycle with comfort and confidence.

Medical note: This article is for educational purposes and is not a substitute for individual medical advice, diagnosis, or treatment. If you are concerned about your periods, symptoms, or hormonal health, speak with a qualified healthcare professional.

FAQs

1. Can you have PMOS without ovarian cysts?

Yes. PMOS does not require ovarian cysts for diagnosis. In adults, diagnosis can be based on two of three key features: hyperandrogenism, ovulatory dysfunction, and polycystic ovarian morphology or elevated AMH.

2. Is PMOS the same as PCOS?

PMOS is the new name for the condition previously known as polycystic ovary syndrome (PCOS). The name changed in May 2026 to better reflect the complex hormonal and metabolic nature of the condition.

3. Can a normal ultrasound rule out PMOS?

No. A normal ultrasound does not automatically rule out PMOS. Healthcare professionals consider menstrual patterns, signs of androgen excess, relevant blood tests, and other diagnostic factors.

4. What are the common symptoms of PMOS?

Common features can include irregular periods, problems with ovulation, acne, increased facial or body hair, scalp hair thinning, metabolic changes, weight-related changes, fertility difficulties, and psychological symptoms. Not everyone experiences the same combination of symptoms.

5. Should I see a doctor if my periods are irregular but my ultrasound is normal?

Yes, especially if irregular periods persist or are accompanied by other symptoms. A normal ultrasound does not provide the full picture of hormonal health. A healthcare professional can assess your symptoms, menstrual history, relevant hormone levels, and other possible causes. Let's break the taboo together!