PCOS (now PMOS) symptoms and treatment UK: diagnosis and care options
PCOS, now called PMOS by the NHS, explained: symptoms, how it is diagnosed in the UK and treatment for periods, skin, weight and fertility.
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New name: the NHS now calls PCOS polyendocrine metabolic ovarian syndrome (PMOS) (checked 24 September 2026). It is the same condition, so both names appear in this guide.
PCOS is often self-diagnosed from internet lists — but overlapping conditions exist. Proper assessment prevents years of wrong assumptions.
Core features of PCOS
Two of three are typically required for diagnosis:
- Irregular or absent periods (infrequent ovulation)
- Signs of high androgens — acne, excess hair, blood test results
- Polycystic ovary appearance on ultrasound
Treatment depends on your priority
Regulate periods: Combined or progestogen contraception.
Improve acne/excess hair: Contraception, anti-androgen treatments, topical acne care — see our acne guide.
Weight management: Diet, exercise and, where a prescriber thinks it appropriate, medicine for insulin resistance or a weight programme.
Trying to conceive: Specialist fertility referral — not managed through emergency online pathways.
Lifestyle foundations
- Low-GI balanced meals
- Regular resistance and cardio exercise
- Sleep and stress management
- Track cycles to understand patterns
Read our women’s health programme.
Who should skip PCOS care?
Skip online “PCOS stacks” of unregulated supplements. Skip if you have very heavy bleeding, positive pregnancy tests with pain, or rapidly increasing facial hair with voice change — get a GP. PCOS is diagnosed with criteria, not a shop quiz.
PCOS care: NHS, high-street pharmacy or online clinic?
GPs and gynaecology diagnose and look after fertility, periods and metabolic risk. Online clinics may help with related private pathways (skin, weight, periods) after assessment. Prescription medicines for insulin resistance are not shop products; we do not name them. GP suits irregular periods, suspected PCOS, fertility plans. Skip that route if you already have a diagnosis and a stable plan.
Choosing a route for PCOS care
| Option | Best for | Skip if |
|---|---|---|
| GP | Irregular periods, suspected PCOS, fertility plans | You already have a diagnosis and a stable plan |
| NHS dietitian / weight service | Metabolic risk, BMI in range for support | You need a diagnosis first |
| Online clinic | A related private pathway a prescriber can justify | You are using it to self-diagnose PCOS |
What to expect if you go online for PCOS care
Blood tests and sometimes a scan are part of diagnosis. Hair, skin and weight issues may be treated separately. Do not stop a prescribed contraceptive without advice just because a forum said so. GP suits irregular periods, suspected PCOS, fertility plans. Skip that route if you already have a diagnosis and a stable plan.
What should you do next?
Ask a GP for diagnosis rather than a shop quiz. Irregular periods, excess hair and fertility plans belong in NHS pathways first. Unregulated “PCOS stacks” are not a care plan. Online clinics may help with related private issues after assessment; they should not be the namer of the syndrome. Say if you are trying to conceive — that changes options. We will not advertise prescription-only metabolic or hormone medicines. If bleeding is very heavy or you feel faint, get seen rather than waiting for a parcel. Weight, sleep and screening for diabetes risk are part of the same conversation as skin and hair. Sanara will not sell you a named hormone. Partner links are marked *. A quiz that “diagnoses PCOS” in thirty seconds is advertising. Take a period calendar to the GP. If you already have a diagnosis, ask what monitoring you still need rather than adding another supplement. If periods have stopped and a pregnancy test is possible, do that first. Sanara will not name a prescription hormone. A private scan without a GP plan is not a diagnosis. Ask what monitoring you still need for diabetes and blood pressure, not which powder is trending.
Sources
- NHS: PMOS (formerly PCOS) — checked 24 September 2026
Frequently asked questions
Is PMOS the same as PCOS?
Yes. The NHS now uses the name polyendocrine metabolic ovarian syndrome (PMOS) for the condition previously called polycystic ovary syndrome (PCOS). Symptoms, diagnosis and treatment are the same; you will see both names for some time.
What are the main symptoms of PCOS?
Irregular periods, excess hair growth, acne, weight gain and difficulty conceiving are common — but not everyone has all features.
How is PCOS diagnosed?
By combining irregular ovulation signs, elevated androgens (symptoms or blood tests) and ultrasound appearance of ovaries — after excluding other causes.
Can PCOS be treated online?
Repeat contraception for cycle regulation and some ongoing care may be managed online. Full diagnosis and fertility treatment usually need GP or specialist review.
Does PCOS cause weight gain?
PCOS is linked to insulin resistance in many women, making weight management harder — but lifestyle changes and medical support still help.
Does everyone with PCOS need a fertility clinic?
No. Many people conceive with time and simple measures. See a GP if you have been trying for the NHS-recommended interval, sooner if cycles are very irregular.
Can inositol supplements replace medical care?
They are not a diagnosis and not a substitute for metabolic and fertility care. Be wary of miracle stacks.
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