Conditions
What are the signs of PCOS?
PCOS (polycystic ovary syndrome) is a common hormone condition. Signs include irregular or missing periods, extra hair on the face or body, acne and weight gain, though you can have some, all or none. Only a doctor can tell you whether you have it. In 2026 it began to be renamed PMOS.
What is PCOS?
The WHO estimates it affects 10 to 13% of women of reproductive age, and up to 70% of them don’t know they have it. In 2026 it began to be renamed PMOS (polyendocrine metabolic ovarian syndrome), so you’ll see both names.
What are the signs of PCOS?
- Irregular periods, long gaps, or no periods.
- Extra hair on the face or body, or thinning hair on the head.
- Acne or oily skin.
- Weight gain, or finding weight hard to lose.
- Difficulty getting pregnant.
- Feeling very tired, low or anxious.
You can have some, all, or none of these. An app can’t tell you whether you have PCOS; only a doctor can.
How is PCOS diagnosed?
Doctors look for at least two of these, after ruling out other causes: signs of high androgens (like extra hair growth, or a blood test), irregular or absent periods, and polycystic ovaries on an ultrasound. Cysts aren’t required. The NHS only uses the scan for people over 18.
Can PCOS be treated?
There’s no cure, but symptoms can be managed: hormonal contraception to regulate periods, medicines for hair growth, acne or fertility, metformin, and diet and exercise. PCOS can raise the risk of type 2 diabetes, high blood pressure and heart disease later, so it’s worth talking about with a doctor.
When should I see a doctor about PCOS?
See a doctor if:
- You think you might have PCOS.
- Your symptoms are affecting everyday life, work or relationships.
Frequently asked questions
Do you need cysts to have PCOS?
No. Cysts aren’t required for a diagnosis. Doctors look for at least two of: signs of high androgens, irregular or absent periods, and polycystic ovaries on an ultrasound.
How common is PCOS?
The WHO estimates it affects 10 to 13% of women of reproductive age, and up to 70% of them don’t know they have it.
Can an app tell me if I have PCOS?
No. An app can show your pattern, but only a doctor can diagnose PCOS.
Sources
Seventh is a free period and cycle tracker for iPhone and iPad, by doogud. This article is general information, not medical advice. If something feels wrong, see a doctor.
