If you've been Googling your symptoms at midnight, convinced something is off but not quite able to name it — you're not alone. And you're not imagining it.

PCOS (polycystic ovary syndrome) is one of the most common hormonal conditions affecting women of reproductive age, yet around 70% of cases go undiagnosed [RACGP, 2012]. That's not because it's rare. It's because the signs are easy to dismiss, the testing isn't straightforward, and too many women are told their results are "normal" when they're anything but.

This guide is here to change that. We're going to walk through the key signs of PCOS — honestly, clearly, without fluff — so you can go into your next GP appointment informed, confident, and impossible to brush off.

PCOS is a hormonal condition that affects how the ovaries work. It's characterised by elevated androgen levels (often called "male" hormones, though every woman has them), disrupted ovulation, and in many cases, small fluid-filled follicles on the ovaries.

Here's what makes it tricky: PCOS doesn't look the same in every woman.

Some women have irregular periods but no acne. Some have facial hair but regular cycles. Some have no outward symptoms at all and only discover their PCOS when investigating fertility. The condition sits on a spectrum, which is exactly why it takes an average of two years to diagnose — and why so many women cycle through GPs without answers.

Your body is trying to tell you something. Learning to recognise what it's saying is the first step.

The most common signs of PCOS include irregular or absent periods, excess hair growth (hirsutism), acne — particularly along the jawline — hair thinning, weight gain around the abdomen, and polycystic ovaries visible on ultrasound. Not all signs will be present in every person.

Below, we go deeper into each one.

Irregular periods are one of the most recognisable signs of PCOS — though they're often dismissed as "just stress" or a natural variation.

Your cycle is considered irregular if it's consistently shorter than 21 days or longer than 35, if your period length varies significantly month to month, or if you're skipping periods altogether.

In PCOS, this happens because elevated androgen levels disrupt ovulation. When the ovaries don't release an egg reliably, the hormonal cascade that triggers your period gets thrown off. Some women with PCOS experience very infrequent periods (called oligomenorrhoea), while others stop altogether (amenorrhoea).

If you're tracking your cycle and noticing it's unpredictable, that data matters. Bring it to your appointment.

Hirsutism — excess hair on the face, neck, chest, back, or stomach — affects more than 70% of people with PCOS [RACGP, 2012] and is often reported as one of the most emotionally distressing symptoms [Lipton et al., 2017].

It's driven by high androgen levels, particularly testosterone and DHEA-S, which stimulate hair follicles in androgen-sensitive areas of the body.

You might notice dark, coarse hairs on your chin, upper lip, or jawline. Or finer hair appearing on your chest or stomach that wasn't there before.

This isn't a cosmetic issue. It's a physiological signal worth investigating. If you've been managing it quietly and hoping it goes away — it won't, without addressing the underlying hormones. And it can be addressed.

Most of us have dealt with a breakout before a period. PCOS-related acne is different.

It tends to appear along the jawline, chin, and upper neck — classic androgen-driven territory. It's often cystic (deeper, more painful, slower to clear), and it can flare at any point in your cycle rather than following a predictable pattern.

High androgens trigger the sebaceous glands to produce excess oil, which blocks pores and leads to persistent breakouts that don't respond well to standard skincare alone.

If you've been through the usual topical treatments without lasting improvement, it's worth exploring whether hormones are the root issue — not just your cleanser.

The name is a little misleading. "Polycystic" doesn't mean you have cysts. What it actually means is that your ovaries contain a higher-than-usual number of small, underdeveloped follicles — the fluid-filled sacs where eggs develop.

In a typical cycle, one dominant follicle matures and releases an egg at ovulation. In PCOS, several follicles begin to develop but none reaches full maturity. They sit in the ovaries, creating that characteristic "string of pearls" appearance on ultrasound.

It's important to know that not everyone with PCOS has polycystic ovaries — and conversely, having polycystic-looking ovaries on ultrasound doesn't automatically mean a PCOS diagnosis. It's one piece of the picture, not the whole thing.

While PCOS drives excess hair growth in some places, it can cause thinning in another: your scalp.

Excess testosterone can be converted into a hormone called DHT (dihydrotestosterone), which miniaturises hair follicles over time. This leads to a pattern of thinning — often at the temples, the crown, or a widening part — known as female pattern hair loss.

You might notice more hair on your brush, or hair that appears fine, flat, and lacking its usual density.

This one is worth raising with your GP specifically, because it's sometimes overlooked during PCOS consultations yet it's a meaningful androgen marker.

Between 38–88% of people with PCOS are classified as overweight or obese [Lim et al., 2019 — BMC Medicine]. But here's the part that often gets missed: it's not a discipline problem.

Many women with PCOS have underlying insulin resistance — a condition where the body's cells don't respond efficiently to insulin. This causes the pancreas to produce more of it, and elevated insulin further stimulates androgen production. The result is a cycle of metabolic disruption that makes weight management genuinely harder, particularly around the abdomen.

If you've been eating well, exercising consistently, and still struggling to manage your weight — especially around your middle — this deserves investigation, not judgement. Insulin resistance is a physiological pattern, and it's one that responds well to targeted support.

PCOS can show up in subtler ways too. Some women report:

• Fatigue and energy crashes, particularly after carbohydrate-heavy meals — linked to blood sugar dysregulation
• Mood changes including anxiety and low mood, which may relate to hormonal fluctuations and sleep disruption
• Difficulty sleeping, often tied to elevated cortisol or anxiety
• Skin darkening in folds like the neck, groin, or underarms (acanthosis nigricans) — a sign of insulin resistance
• Fertility challenges, particularly irregular or absent ovulation making conception harder

These aren't guarantees of PCOS — but in combination with other signs, they're worth flagging.

PCOS is diagnosed using the Rotterdam Criteria: a woman must meet at least two of three criteria — irregular or absent ovulation, elevated androgen levels (confirmed clinically or via blood test), and polycystic-appearing ovaries on ultrasound. There is no single definitive test.

Here's what a typical diagnostic process looks like.

Step 1: Your medical history

Your GP will ask about your cycle history, symptoms, and any changes you've noticed. Be as specific as possible. Bring notes if it helps. The more detailed you are, the better equipped they are to investigate properly.

Step 2: Blood tests

These typically measure:

• LH and FSH (luteinising hormone and follicle-stimulating hormone) — the ratio matters in PCOS
• Total and free testosterone
• DHEA-S (another androgen)
• Prolactin and thyroid hormones (to rule out other causes)
• Fasting insulin and glucose — to check for insulin resistance
• HbA1c — a longer-term blood sugar marker

Important note on timing: where possible, hormone blood tests are most informative when done in the early follicular phase (days 2–5 of your cycle). If you have irregular periods, your GP may advise testing at a specific point regardless.

Step 3: Pelvic ultrasound

An ultrasound can assess ovarian volume and follicle count. In PCOS, this often shows 20 or more follicles per ovary, or increased ovarian volume. It can also rule out other causes of symptoms.

Step 4: Receiving your diagnosis

Using the Rotterdam Criteria — the internationally accepted standard — a PCOS diagnosis requires at least 2 of the following 3:

1. Irregular or absent periods (indicating disrupted ovulation)
2. Clinical or biochemical signs of elevated androgens
3. Polycystic ovaries on ultrasound

Getting a referral, waiting for an ultrasound, or navigating a GP who seems sceptical — it's frustrating. Here's what you can do in the meantime.

Track your cycle. Use an app or a simple notebook. Note cycle length, period heaviness, and any symptoms through the month. This data gives your GP something concrete to work with.

Track your symptoms. Acne patterns, energy levels, mood shifts, hair changes — write them down with dates. Over a few months, patterns emerge.

Request the right tests. You're entitled to ask your GP to include fasting insulin and DHEA-S alongside standard hormone panels. These are often omitted from routine testing but are highly relevant to PCOS.

Don't accept "normal" without context. Reference ranges on blood tests are broad. A result that technically sits within the "normal" range can still be suboptimal for you. Ask for the actual numbers, not just the verdict.

Whether you're waiting on a diagnosis or you've already received one, there's a lot you can do to support your hormonal health in the meantime. One of the most researched starting points is myo-inositol.

Women with PCOS often have lower levels of inositol in the body — a naturally occurring compound that plays a key role in insulin signalling and ovarian function. A growing body of evidence shows that myo-inositol supplementation can support insulin sensitivity, improve ovulation frequency, and help regulate androgen levels [Unfer et al., 2017 — Frontiers in Endocrinology].

Myoplus by MyOva is our award-winning supplement developed specifically for women with PCOS. It contains myo-inositol alongside chromium picolinate (which supports normal blood glucose levels), folate as L-5-methyltetrahydrofolate (the active, bioavailable form), and vitamin B6 — a combination designed to work with your body's physiology, not against it.

It's not a magic fix. But it gives your body what it's often missing — and for many women, that's exactly where meaningful change starts.

Yes. Some women with PCOS have regular cycles but still show elevated androgens and polycystic ovaries on ultrasound. This is sometimes called "ovulatory PCOS." Regular periods don't automatically rule out the condition — if other signs are present, it's still worth investigating.

Polycystic ovaries refer specifically to the appearance of the ovaries on ultrasound — multiple small follicles, often with increased ovarian volume. PCOS is a broader syndrome diagnosed when ovarian appearance is combined with other hormonal or cycle-related signs. You can have polycystic-looking ovaries without having PCOS.

On average, it takes two years from symptom onset to diagnosis — often longer. This is partly due to the variability of symptoms and the number of conditions that need to be ruled out. Keeping detailed records of your symptoms and cycles can significantly speed up the process.

No. Blood tests are an important part of the diagnostic picture, but PCOS is diagnosed using a combination of clinical signs, hormone levels, and often an ultrasound. No single test is definitive.

PCOS is one of the most common causes of ovulatory infertility — but having PCOS does not mean you cannot conceive. Many women with PCOS go on to have healthy pregnancies, particularly with appropriate support. Supporting ovulation through lifestyle, nutrition, and targeted supplementation is a meaningful first step.

PCOS is underdiagnosed, often misunderstood, and consistently undersupported by standard care pathways. But it's also one of the most responsive conditions when addressed properly — with the right information, the right tests, and the right approach.

You're not overreacting. You're not being dramatic. If something feels off in your body, it deserves a proper look.

Your diagnosis is a starting point, not a verdict. And there is always something intelligent you can do next.

1. RACGP (2012). Polycystic ovary syndrome. Australian Family Physician, 41(10). https://www.racgp.org.au/afp/2012/october/polycystic-ovary-syndrome/
2. Lipton MG, Sherr L, Sherr A, et al. (2017). Women living with facial hair: the psychological and behavioral burden. Journal of Psychosomatic Research, 64(2), 161–168. https://pubmed.ncbi.nlm.nih.gov/28515051/
3. Lim SS, Hutchison SK, Van Ryswyk E, et al. (2019). Lifestyle changes in women with polycystic ovary syndrome. Cochrane Database of Systematic Reviews. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6734597/
4. NHS (2022). Polycystic ovary syndrome (PCOS) — Diagnosis. https://www.nhs.uk/conditions/polycystic-ovary-syndrome-pcos/diagnosis/
5. NHS (2022). Irregular periods. https://www.nhs.uk/conditions/irregular-periods/
6. Unfer V, Carlomagno G, Dante G, Facchinetti F. (2012). Effects of myo-inositol in women with PCOS. European Review for Medical and Pharmacological Sciences, 16(5), 575–81.
7. Unfer V, Nestler JE, Kamenov ZA, et al. (2017). Effects of Inositol(s) in Women with PCOS: A Systematic Review of Randomized Controlled Trials. International Journal of Endocrinology, 2017. https://doi.org/10.1155/2017/1849162