PCOS, Unfiltered

Read This First

Danger now?

Stop reading and call your local emergency number (911 in the US, 999 or 112 in the UK, 999 or 112 in Kenya), or go to the nearest emergency department, if you have:

• Bleeding so heavy you're soaking a pad or tampon every hour for more than two hours, and you feel dizzy, faint, breathless or have chest pain. This often comes after months with no period.
• A positive pregnancy test with sudden, sharp pain low on one side, dizziness or fainting. This can be an ectopic pregnancy.
• During fertility treatment: a swollen, painful belly, breathlessness, vomiting or peeing very little. This can be ovarian hyperstimulation syndrome.
• Great thirst and peeing a lot, with vomiting, fast breathing, drowsiness or confusion. This can be dangerously high blood sugar.
• On the pill: a painful swollen calf, sudden breathlessness, chest pain, or sudden weakness or numbness of your face, arm or leg. This can be a blood clot or a stroke.
• Thoughts of ending your life, or feeling you can't keep yourself safe. Call 988 in the US or Samaritans on 116 123 in the UK and Ireland, any time.

The full list is on the Go Now Card at the back of this book. Photograph it now.

You were probably told in a few minutes. Maybe a scan, maybe a blood test, maybe neither. "You've got polycystic ovaries. Here's the pill. Try to lose some weight." Then you went home, opened your phone, and found a hundred people selling you a cure.

This book is the conversation you should have had in that room.

What this book is

It's an unfiltered, evidence-led guide to polycystic ovary syndrome (PCOS). In May 2026 the condition was officially given a new name, polyendocrine metabolic ovarian syndrome (PMOS). Chapter 1 explains why. We use "PCOS" because it's still the word on your notes and the word you type into a search bar.

You will find out what PCOS actually is, how it should be diagnosed, and what it does to your periods, skin, hair, weight, mood, fertility and long-term health. You'll learn which treatments have evidence behind them, which "cures" don't, and what to ask for. By the end you'll have a written PCOS Care Plan: the tests you've had and haven't, the symptoms you most want treated, and the checks you need for the rest of your life.

Two rules run through every page.

We don't judge you. PCOS isn't caused by anything you did. Whatever you've tried (the pill, the diet, the tea, the inositol, the coach), you tried it because nobody gave you a straight answer.

We don't soften the facts. Where PCOS raises a real risk, such as diabetes, a thickened womb lining, or depression, we say so plainly, with numbers when good studies have counted, and with what to do about it.

This approach has a name: harm reduction. It means meeting you where you are, including if you're already taking something we'd question, and helping you do it as safely as possible.

What this book is not

• It is not medical advice and it can't diagnose you. It can't examine you or read your blood results. Use it to prepare for a proper assessment with a clinician.
• It is not a diet book. You won't find calorie targets, weight targets or meal plans with numbers in them. That's deliberate. People with PCOS are more likely to develop eating disorders, and the evidence doesn't favour any single diet anyway (chapters 7 and 9).
• It is not a shopping guide. No supplement brands, no doses for anything you'd take without a prescriber, no sellers. When we quote a dose, it comes from an official label or guideline, only to explain a risk.
• MediQuestAI does not prescribe, sell or dispense any medicine. The link at the back of the book helps you get your history and questions in order before you see a clinician. That's all it does.

Who it's for

• You've been diagnosed with PCOS, often quickly, and handed the pill.
• You suspect you have it: periods that don't come, hair where you don't want it, acne, thinning hair, dark velvety patches on your neck, or weight that won't shift.
• You're a parent of a teenager with irregular periods and spots, and you don't want her labelled too early or ignored too long.
• You have PCOS and you're trying to get pregnant.
• You're thinking about a weight-loss injection for PCOS.
• You're a partner who wants to understand.

How to use it

Read chapters 1 and 2 first. They explain what PCOS is and how a proper diagnosis is made, and everything else builds on them. After that, jump to what matters to you:

• Periods and your womb lining: chapter 3
• Hair, acne, hair loss and dark patches: chapter 4
• Weight, insulin and blame: chapter 5
• Fertility and pregnancy: chapter 6
• Mood, anxiety and body image: chapter 7
• The pill, metformin and other treatments: chapter 8
• Supplements, diets and "cures": chapter 9
• Diabetes, heart, sleep, liver and menopause: chapter 10
• Teenagers: chapter 11
• Your PCOS Care Plan: chapter 12

You'll see the same boxes in most chapters:

• The One Thing: the single fact from that chapter you must not forget.
• Go Now: the signs that mean emergency care, not an appointment.
• Ask This: the exact words to say to your doctor, nurse or pharmacist, with what a good and a bad answer sound like.
• Myth / What the evidence says: something you've heard, checked against the research.
• If You're Doing It Anyway: the safer way to do something we'd question, when you've already decided.

Where are you right now?

Tick the one that fits.

• I've just been diagnosed (or think I have PCOS). Read chapters 1 and 2, then chapter 12.
• My periods have stopped or are months apart. Read chapter 3 today.
• I'm trying to get pregnant. Read chapters 2, 3 and 6.
• I'm buying supplements or a programme. Read chapter 9 before the next payment.
• I'm a parent. Read chapters 2 and 11.

About the stories

Where a chapter opens with a real event, such as a regulator's ruling or a published study, we say so and cite it. Everything else is labelled.

Some stories are composites; names and details are changed. No composite in this book contains a real patient's words, a real clinic's name or a statistic. The numbers live in the main text, each with a source.

About this book

This book is educational. It is not medical advice, and it is not a substitute for a clinician who knows your history. If you have warning signs now, use the Go Now card or call your local emergency number. For everything else, take the questions in this book to a doctor, nurse or pharmacist.

*Facts in this book were checked against sources available in October

1. Guidelines, drug labels and even the name of the condition change. Check the date on any advice before you rely on it.*

The Condition With the Wrong Name

Zara was seventeen when her periods stopped making sense. Five weeks, then three months, then nothing from Easter to the summer holidays. The spots on her jaw wouldn't clear. There were dark hairs on her chin that she plucked in the bathroom with the door locked.