There comes a point in your forties when conversations with your friends start sounding suspiciously like the symptoms list for a condition you’ve been dealing with your entire life.

Someone mentions that her periods have suddenly become completely unpredictable. Someone else is complaining that her hair is falling out. Another has discovered a rogue moustache and is researching the best wax strips. There are conversations about terrible sleep, forgetting words and walking into rooms without the faintest idea why you went there.

And I’m sitting there thinking, I have so many opinions on this.

Not because anyone has asked me. Not because I’m a doctor. And certainly not because I have any formal qualifications. But because I’ve had PCOS for most of my life, so when the conversation turns to periods, facial hair, hair loss, weight, skin, sleep or brain fog, I have approximately 40 years’ worth of unsolicited experience ready to contribute. I may not actually say anything. But internally, I’m writing a thesis.

Because while my friends are beginning to discover some of the joys of hormonal chaos in their forties, I’ve been dealing with versions of it for years. And it has occurred to me that perhaps we PCOS girls have been accidentally training for perimenopause our whole lives.

Not intentionally, obviously. If someone had offered me the choice between decades of hormonal nonsense and literally anything else, I would have happily taken the anything else. But after years of insulin resistance, being spectacularly good at gaining weight and considerably less talented at losing it, hair appearing where it absolutely shouldn’t, hair disappearing from where it definitely should stay, acne whenever I dared to come off the pill, periods that didn’t always understand the concept of a calendar, sleep that could sometimes be described as more of a negotiation than a biological function, and brain fog that occasionally made me wonder where my actual brain had gone, I’ve developed some pretty impressive hormonal survival skills.

And now I’m wondering if they’re finally going to come in handy.

First, we need to talk about the name

Let’s start with the name, because even that has become a little complicated.

PCOS — polycystic ovary syndrome — has historically been the name we’ve used for a condition that is actually much more than an ovarian issue. And as of 2026, the international guideline has introduced Polyendocrine Metabolic Ovarian Syndrome, or PMOS, to better reflect the endocrine and metabolic nature of the condition.

Because having PCOS doesn’t simply mean you have cysts on your ovaries. In fact, you can have PCOS without having polycystic ovaries at all.

My own experience certainly hasn’t been confined to my ovaries. I’ve dealt with insulin resistance, weight that seems to gain itself, unwanted facial hair, hair loss, acne whenever I came off the pill, irregular periods, sleep issues and brain fog. I also had cysts on my ovaries, although thankfully they never caused me any trouble.

For years, none of this felt like a superpower. It felt like an incredibly inconvenient collection of things my body had decided to make my problem. But then I hit my forties, and I started hearing other women talk about some of the things I’d spent years navigating. That’s when I started wondering whether all this unwanted experience might actually be useful.

The surprising overlap between PCOS & perimenopause

Before we get carried away, PCOS and perimenopause are not the same thing. PCOS is a long-term endocrine and metabolic condition, generally beginning during the reproductive years. Perimenopause is the transition towards menopause, when ovarian hormone production becomes increasingly variable and eventually declines.

But the symptoms can overlap in some surprisingly familiar ways.

PCOS Perimenopause
Periods Can be irregular, infrequent or absent because ovulation may not happen regularly. Often become irregular as ovulation becomes less predictable.
Hormones Often involves androgen excess and disrupted hormonal signalling. Oestrogen and progesterone fluctuate considerably during the transition.
Weight & metabolism Insulin resistance and metabolic factors can make weight management more complicated. Changes in body composition, fat distribution and metabolism can occur.
Facial/body hair Increased androgen activity can cause excess facial or body hair. Changes in the hormonal balance can contribute to increased facial hair for some women.
Scalp hair Hair thinning or loss can occur, particularly with androgen-related effects. Hormonal changes and ageing can contribute to hair thinning.
Acne Androgen activity can contribute to acne. Hormonal fluctuations can trigger or worsen acne.
Sleep Sleep problems, including sleep-disordered breathing, are more common in women with PCOS. Sleep disturbances are common during the menopause transition.
Brain fog Some women with PCOS experience cognitive or psychological symptoms. Forgetfulness, difficulty concentrating and “brain fog” are commonly reported.
Mood PCOS is associated with a higher prevalence of psychological symptoms. Mood changes can occur during the menopause transition.
The general feeling Why is my body doing this? Why is my body doing this?

And that is the bit I find fascinating. Look at that list. The conditions are different. The mechanisms are different. But if you’ve spent years living with PCOS, an awful lot of the perimenopause conversation can sound remarkably familiar. Perimenopause itself can bring changes in periods, sleep, cognition, mood, weight and hair, among many other symptoms.

Which brings me back to my original thought.

Maybe we’ve been training for this.

We’ve already learned that our bodies are complicated

One of the biggest lessons PCOS can teach you is that your body isn’t a simple equation.

For many women with PCOS, insulin resistance and other metabolic factors can be part of the picture. That doesn’t mean weight is completely outside our control, but it does mean the simplistic eat less, exercise more and try harder explanation doesn’t tell the whole story.

Then you reach your forties and your body changes again. Perimenopause can affect body composition and fat distribution, and suddenly women who have never had to think much about their metabolism are wondering why their bodies aren’t responding the way they used to.

PCOS girls may already have something valuable going into this stage of life: we’ve had years to learn that a change on the scale isn’t a character assessment.

We’ve already done the guilt.

We’re not booking another appointment.

We’ve already met the hair

Then there is the hair.

If you’ve had PCOS , you probably know the particular cruelty of hormonal hair changes. The hair on your head is thinning while the hair on your chin appears to be entering its peak growth phase.

It’s almost impressive.

You’ve spent years learning the difference between hair you desperately want to keep and hair you would happily remove with industrial machinery. You know your tweezers, your wax, your threading, your lasers and probably exactly which bathroom lighting makes every follicle look like it has filed planning permission.

And then there is the other side of the equation: losing hair from your scalp while gaining it on your face.

The good news, if there is such a thing, is that PCOS girls have already learned not to treat every rogue hair as a personal crisis. We know hair can be hormonal. We know it isn’t a failure of femininity. We know that sometimes you just grab the tweezers and carry on with your day.

We’ve been here before.

We’ve already had the sleep & brain fog conversation

Sleep is another one.

If you’ve dealt with sleep problems alongside PCOS, you may already know what it feels like to be completely exhausted while your body and brain appear to have entered into a private disagreement about bedtime. Sleep issues are recognised as part of the broader burden associated with PCOS, and sleep disturbance is also common during the menopause transition.

Then there is brain fog.

That wonderful moment when you walk into a room and immediately forget why you’re there. When a perfectly ordinary word disappears from your vocabulary. When you’re halfway through a sentence and suddenly have absolutely no idea where you were going with it.

Brain fog is common during the menopause transition, and cognitive and psychological symptoms can also occur alongside PCOS.

So when perimenopause starts talking about poor sleep and forgetting words, some of us can quietly think, I’ve met these two before.

Where do I sign?

Perhaps our real advantage is that we’ve learned to listen

This, I think, is the part that matters most.

Living with PCOS can make you incredibly aware of your own body. You learn to notice changes in your cycle, skin, hair, weight, sleep and energy. You learn that seemingly unrelated symptoms can sometimes be connected. You learn to ask questions.

Is this normal? Is this hormonal? Could these things be connected? Should I get this checked?

And many women with PCOS have also had to learn to advocate for themselves. Diagnosis can be delayed, symptoms can be misunderstood and the condition has historically been under-recognised. The new PCOS name (PMOS) itself is intended to better communicate the broader nature of the condition and improve recognition and care.

That experience is valuable.

Because when perimenopause arrives, the challenge isn’t simply experiencing symptoms. It’s understanding that your body is changing, recognising what is new for you and knowing when something deserves proper medical attention rather than being dismissed as “just getting older.”

PCOS girls have had years of hormonal detective work.

We may not have all the answers.

But we’re pretty good at spotting clues.

This doesn’t mean we’ve got perimenopause figured out

I think this distinction is important because I don’t want to turn PCOS into some kind of hormonal loyalty programme.

There is no Perimenopause Platinum card waiting for us after years of suffering. There is no complimentary glass of champagne, no priority boarding and, disappointingly, no lifetime supply of good tweezers.

Having PCOS doesn’t mean perimenopause will be easier. You may experience symptoms you’ve never had before. You may find the combination of your existing hormonal issues and the menopausal transition particularly challenging.

And because PCOS and perimenopause have different underlying causes, new or significant symptoms shouldn’t simply be written off as one or the other.

But that’s not really the point of this article.

The point is that we’ve already learned how to live in a body that doesn’t always follow the rulebook.

And that is a skill.

Maybe PCOS wasn’t our superpower. Maybe it was our training.

For most of my life, I wouldn’t have described PCOS – now PMOS – as a gift. It has been frustrating, inconvenient and, at times, exhausting. I’ve had to deal with symptoms that other women didn’t have to think about until much later in life.

But sitting here in my forties and listening to conversations about perimenopause, I’m starting to see those years differently.

I’ve learned that hormones can affect far more than your period. I’ve learned that weight isn’t always simple. I’ve learned that hair can change in deeply unhelpful directions. I’ve learned that sleep can disappear just when you need it most, and that your brain can occasionally lose a perfectly ordinary word while you’re still halfway through the sentence.

I’ve learned to pay attention. I’ve learned to ask questions. I’ve learned not to automatically blame myself. And I’ve learned that just because my body is doing something unexpected doesn’t mean it is broken.

That feels pretty useful right now.

So, to my fellow PCOS girls heading into our forties: I don’t know what your perimenopause is going to look like. None of us does. But I do know that you’ve already spent years learning how to navigate a body that doesn’t always follow the standard script.

You’ve already met the hormonal plot twists. You’ve already dealt with the questionable periods, the facial hair, the hair loss, the acne, the weight battles, the bad nights and the brain fog. You may have spent years wishing you didn’t have to know so much about all of it.

But perhaps now we can look at that experience a little differently.

Maybe PCOS wasn’t our superpower.

Maybe it was our training.

And now, as perimenopause walks through the door carrying its own suitcase of hormonal chaos, we might be just a little more prepared than we realise.

We’ve got the experience. We’ve got the questions. We’ve got the hormonal detective skills.

And, frankly, we’ve got the bloody T-shirt.

PCOS girls: turns out we’ve been training for perimenopause our whole lives.

Maybe it wasn’t a superpower at the time.

But perhaps now, finally, it is.

 


PCOS FAQ

What is PCOS?

PCOS stands for polycystic ovary syndrome. It is a common hormonal and metabolic condition that can affect ovulation, periods, androgen levels and metabolism. Despite the name, PCOS isn’t simply a problem with cysts on the ovaries, and you can have PCOS without having polycystic ovaries.

Is PCOS the same as PMOS?

The terminology around PCOS is changing. PMOS (Polyendocrine Metabolic Ovarian Syndrome) has been introduced to better describe the broader hormonal and metabolic nature of the condition. However, PCOS remains the familiar term and is still widely used during the transition to the new terminology.

Do you have to have cysts to have PCOS?

No. This is one of the biggest misconceptions about PCOS. Despite the name, having polycystic ovaries isn’t essential for a diagnosis. PCOS is diagnosed using a combination of clinical features, including irregular ovulation, signs of increased androgens and polycystic ovarian morphology, depending on the diagnostic criteria being used.

What are the most common symptoms of PCOS?

PCOS can look very different from woman to woman. Symptoms can include irregular or absent periods, difficulty ovulating, excess facial or body hair, acne, scalp hair thinning, insulin resistance and difficulties with weight management. Some women also experience sleep problems and psychological or cognitive symptoms.

Can PCOS cause weight gain?

PCOS can make weight management more complicated for some women, particularly when insulin resistance is involved. However, PCOS doesn’t automatically mean you’ll gain weight, and not everyone with PCOS is overweight. The relationship between PCOS, metabolism and weight is complex.

Can PCOS cause facial hair?

Yes. Higher levels or activity of androgens can cause excess facial or body hair, known as hirsutism. Common areas include the chin, upper lip, jawline, chest and abdomen. And yes, the chin hairs can apparently grow at approximately the speed of bamboo.

Can PCOS cause hair loss?

It can. Increased androgen activity can contribute to thinning of the hair on the scalp, particularly around the crown or parting. Hair loss can have many other causes too, so new or significant hair loss is worth discussing with a healthcare professional.

Can PCOS cause acne?

Yes. Higher androgen activity can increase oil production and contribute to acne. For some women, acne can persist into adulthood or return when hormonal contraception is stopped.

Can PCOS cause irregular periods?

Yes. Irregular or infrequent periods are one of the most recognised features of PCOS and can happen because ovulation isn’t occurring regularly. Some women have very long cycles, while others may go months without a period.

Can you have PCOS & still have regular periods?

Yes. PCOS doesn’t look the same in everyone, and having regular periods doesn’t necessarily rule it out. A diagnosis is based on the overall clinical picture rather than one symptom alone.

Does PCOS go away with age?

PCOS is considered a long-term condition, although its symptoms can change throughout your life. Some symptoms may become less obvious with age, while metabolic risks and other aspects of the condition can remain relevant. Reaching your forties doesn’t necessarily mean you’ve “grown out of” PCOS.

Can PCOS affect sleep?

Yes. Sleep problems are more common among women with PCOS, and conditions such as obstructive sleep apnoea are also more prevalent. If you’re consistently exhausted despite getting enough time in bed, it’s worth talking to your doctor rather than simply assuming you’re bad at sleeping.

Can PCOS cause brain fog?

Some women with PCOS report difficulties with concentration, memory or cognitive function, although brain fog isn’t one of the defining diagnostic features of PCOS. There are also many possible causes of brain fog, including poor sleep, stress and hormonal changes.

Can you have PCOS & go through perimenopause?

Absolutely. Having PCOS doesn’t protect you from perimenopause or mean you’ve already been through it. PCOS and perimenopause are different hormonal experiences, although some of their symptoms can overlap – including irregular periods, hair changes, acne, sleep problems, changes in weight and brain fog.

Does having PCOS make perimenopause worse?

Apparently there is no simple answer to this. PCOS and perimenopause interact in complicated ways, and research into how PCOS affects the menopausal transition is ongoing. What theydo know is that PCOS doesn’t disappear simply because you reach your forties, so it’s important not to assume every new symptom is automatically “just perimenopause.”

How do I know whether a symptom is PCOS or perimenopause?

Sometimes you won’t be able to tell from the symptom alone because there can be considerable overlap. A change in your cycle, for example, could be related to PCOS, perimenopause or something else entirely. New, persistent or concerning symptoms are worth discussing with your healthcare provider, particularly if they represent a significant change from your usual pattern.

Can PCOS increase your risk of other health problems?

Yes. PCOS is associated with an increased risk of several metabolic and reproductive health issues, including insulin resistance, type 2 diabetes and cardiovascular risk factors. The level of risk varies between individuals, which is why ongoing health monitoring is important.

Can you still get pregnant if you have PCOS?

Yes. Many women with PCOS become pregnant, either without assistance or with fertility treatment if needed. PCOS can make ovulation less predictable, which can make conception more difficult for some women, but it does not mean you cannot have children.

Is there a cure for PCOS?

There isn’t currently a cure for PCOS, but its symptoms and associated health risks can be managed. Treatment depends on your individual symptoms, goals and health profile and may include lifestyle changes, hormonal contraception, medications or treatments targeting particular symptoms.

What should I do if I think I have PCOS?

Speak to a healthcare professional. There isn’t one single blood test that diagnoses PCOS, and your doctor will usually look at your symptoms, menstrual history, medical history, examination and sometimes blood tests or ultrasound findings to work out whether you meet the diagnostic criteria.

Is everything wrong with me because of PCOS?

No. Your body is complicated. Hormones are complicated. And sometimes a rogue chin hair is just a rogue chin hair. PCOS can explain a lot, but it shouldn’t become a convenient explanation for every change your body makes – particularly as you enter your forties and perimenopause enters the chat.