PCOS Basics: Signs, Diagnosis and Doctor Prep

If you've been told you might have PCOS, or you're wondering whether irregular periods, acne or other changes you've noticed could be connected, you're not alone.

This is a plain-language starting point. It's educational information, not medical advice, and it can't diagnose you. Only a qualified clinician can do that.

What PCOS is

PCOS stands for polycystic ovary syndrome. It's a common hormonal condition that affects people with ovaries. Estimates of how common it is vary widely depending on who is studied and how it's defined, often landing around 1 in 10 women of reproductive age.

The name is a little misleading. The "cysts" are usually small follicles, and not everyone with PCOS has them.

Common signs

Irregular, infrequent or absent periods
Acne, extra hair growth on the face or body, or thinning hair on the scalp, which can be signs of higher androgen hormones
Difficulty getting pregnant
Changes in weight, or finding weight harder to manage
Fatigue and low mood, which are also commonly reported but have many possible causes

Not everyone has all of these, and having one doesn't mean you have PCOS. Many other conditions share the same signs, which is why a proper assessment matters.

How PCOS is diagnosed

There's no single test. Clinicians generally follow international guidelines that look for at least two of three features: irregular or absent ovulation, signs or blood-test evidence of higher androgens, and a polycystic-appearing ovary pattern on ultrasound (in some adults, a blood test called AMH is used instead). Other conditions that can look similar, such as thyroid problems, are ruled out first. The approach is different for teenagers, so your clinician will explain which criteria apply to you.

Can PCOS be cured?

There is currently no cure, but the symptoms can be managed, and the right approach depends on your symptoms, your goals and your clinician's advice. International guidelines place healthy-lifestyle support at the heart of care, alongside treatment options your clinician may discuss with you.

How to prepare for a doctor's visit

Track your cycle for two to three months. Note start dates, length and flow.
Write down your symptoms and roughly when each one started.
List your medications and supplements, plus any family history of PCOS, diabetes or thyroid conditions.
Decide what matters most to you: regular cycles, skin, fertility, energy, or something else.
Bring notes, or someone you trust, if that helps you remember what was said.

Questions worth asking

What tests do you recommend, and why?
Could something else explain my symptoms?
What are my options for managing them?
Which changes are worth making first?
When should I come back, and what should I track until then?

Everyday habits that support you

Alongside medical care, many people find the basics help: regular, balanced meals, enough sleep, ways to manage stress, and movement you enjoy. The World Health Organization suggests adults aim for 150 to 300 minutes of moderate activity a week, adapted to what's safe and comfortable for you. Check with your clinician before making big changes.

When to get urgent care

Don't wait for an appointment if you have severe pelvic pain, very heavy bleeding, or sudden severe symptoms. Get urgent medical care.

A companion for your appointments

The PCOS Guide is Dewdeck's 54-page educational guide, made to read on your phone. It includes a cycle log, a weekly check-in, a movement planner and a doctor prep sheet. It's an educational guide, not medical advice, and it doesn't replace your clinician.