Private PCOS specialist in London

PCOS is defined using the Rotterdam criteria, which require the presence of at least two of the following three features: irregular or absent menstrual cycles (oligo- or anovulation), clinical or biochemical signs of hyperandrogenism (excess male hormones), and polycystic ovarian morphology on ultrasound.

This three-criterion framework gives rise to four distinct phenotypes of PCOS, each with a different hormonal and metabolic profile. Some phenotypes carry a higher metabolic risk than others, and understanding which phenotype a patient has is clinically relevant for tailoring her management plan.

An important clarification I make in almost every PCOS consultation: having polycystic-appearing ovaries on an ultrasound does not mean you have PCOS. Many women are told they have PCOS on the basis of a scan alone, without meeting the full diagnostic criteria. Polycystic ovarian morphology is simply one finding among three required criteria. A proper diagnosis requires clinical assessment, hormonal blood tests, and appropriate history — not a scan report in isolation.

PCOS presents differently in different women, and the same diagnosis can feel entirely unlike in two individuals. In my practice, I see the full spectrum of presentations:

• Irregular or absent periods — cycles that are consistently longer than 35 days, unpredictable, or absent (amenorrhoea)
• Acne — particularly jawline, chin, or back acne that is hormonally driven and often resistant to standard skin treatments
• Hirsutism — unwanted hair growth on the face, chest, abdomen, or inner thighs, caused by excess androgens
• Hair thinning or androgenic alopecia — thinning at the crown or temples, which can be deeply distressing
• Weight gain or difficulty losing weight — particularly central (abdominal) weight gain, often driven by insulin resistance
• Difficulty conceiving — resulting from absent or infrequent ovulation
• Low mood and anxiety — the psychological burden of PCOS symptoms is significant and under-acknowledged
• Fatigue and energy fluctuations — often linked to blood sugar dysregulation
• Skin tags and acanthosis nigricans — darkening of the skin in skin folds (neck, armpits, groin), a classic sign of insulin resistance

What makes PCOS so much more than a “period problem” is its metabolic dimension. Insulin resistance is present in approximately 70–80% of women with PCOS, including many who are of normal weight. Insulin resistance means that the body’s cells do not respond effectively to insulin, leading the pancreas to produce more of it. Raised insulin levels, in turn, stimulate the ovaries to produce excess androgens — which drives many of the hallmark PCOS symptoms — and disrupts normal ovulation.

Left unaddressed, insulin resistance places women with PCOS at significantly increased risk of:

• Type 2 diabetes (up to five to seven times the background risk)
• Cardiovascular disease — hypertension, dyslipidaemia, and an unfavourable metabolic profile
• Non-alcoholic fatty liver disease
• Gestational diabetes and pregnancy complications
• Endometrial hyperplasia (thickening of the uterine lining) and, over time, an increased risk of endometrial cancer in women with very infrequent periods

I cannot stress strongly enough: PCOS must be treated beyond the symptom that brought you to the clinic. Long-term metabolic health is at stake, and the right interventions — started early — can substantially reduce these risks.

In my practice, PCOS assessment goes well beyond a single blood test and an ultrasound. I take a thorough clinical history, examining your symptom pattern, menstrual history, weight trajectory, family history of diabetes and cardiovascular disease, and your personal goals for treatment — whether that is cycle regulation, fertility, skin and hair concerns, or long-term health.

My investigations typically include a comprehensive hormonal panel (LH, FSH, testosterone, SHBG, free androgen index, DHEAS, 17-OHP to exclude congenital adrenal hyperplasia), prolactin, thyroid function, and a full metabolic screen including fasting glucose, insulin, HbA1c, and lipid profile. I also arrange a pelvic ultrasound to assess ovarian morphology, antral follicle count, and uterine lining.

There is no single treatment for PCOS, because the condition itself is not uniform. Treatment is guided by which aspects of PCOS are most affecting you right now and what your goals are.

Lifestyle intervention is the most evidence-based first-line treatment in women with metabolic features of PCOS. Even a modest 5–10% reduction in body weight in women with overweight has been shown to restore ovulation, improve androgen levels, and reduce insulin resistance. I take a supportive, non-judgemental approach to discussing lifestyle, recognising that weight loss is often genuinely difficult in PCOS due to underlying insulin resistance.

Inositol (particularly myo-inositol and D-chiro-inositol combinations) is an evidence-supported supplement that improves insulin sensitivity, promotes ovulation, and can reduce androgen levels. I recommend it frequently as part of a comprehensive PCOS plan.

Metformin is an insulin-sensitising medication that has been used in PCOS for decades. It can improve cycle regularity, reduce androgen levels, and support weight management. It is particularly useful in women with overt insulin resistance or impaired glucose tolerance.

The combined oral contraceptive pill remains a useful tool for cycle regulation, endometrial protection, and management of androgenic symptoms including acne and hirsutism. The choice of pill matters: pills with an anti-androgenic progestogen (such as drospirenone or cyproterone acetate-containing formulations) are preferable for women with significant androgenic symptoms.

Anti-androgens such as spironolactone can be highly effective for hirsutism and hair thinning in women who are not planning pregnancy. They require a reliable contraceptive method and regular monitoring.

GLP-1 receptor agonists — medications such as semaglutide, originally developed for type 2 diabetes and now widely used for weight management — are showing considerable promise in PCOS. They are not currently licensed specifically for PCOS, but emerging evidence suggests benefits for insulin resistance, weight, and ovulatory function. I discuss this option with appropriate patients on an individualised basis, as part of my dedicated weight and metabolic health care.

Fertility concerns are one of the most common reasons women with PCOS come to see me. The good news is that the majority of women with PCOS can conceive, though ovulation induction or assisted reproductive technology may be needed. Irregular ovulation means that natural conception can be challenging and unpredictable, but PCOS is very much a treatable cause of infertility.

Optimising metabolic health before conception is an important first step. Achieving a healthy weight range, addressing insulin resistance, and regulating the cycle where possible all improve the chances of conception and reduce the risk of pregnancy complications including gestational diabetes and miscarriage.

Where ovulation induction is needed, I work closely with specialist reproductive medicine colleagues and can coordinate appropriate referrals. I will ensure you understand every step of the pathway and that you go into any fertility treatment with full clarity about your options.

1. Your periods are consistently irregular, absent, or unpredictable
2. You have been told you have PCOS but have not had a full hormonal and metabolic assessment
3. You are experiencing acne, unwanted hair growth, or hair thinning that has not responded to standard treatments
4. You are struggling with weight despite diet and exercise efforts
5. You are planning a pregnancy and want to optimise your hormonal and metabolic health first
6. You have been trying to conceive without success and irregular cycles are a factor
7. You have a family history of type 2 diabetes and want to understand and manage your risk

PCOS is a lifelong condition, but it does not have to define your health. With the right support, the right investigations, and a treatment plan that is built around you as an individual, it is entirely possible to feel well, to manage your symptoms effectively, and to protect your long-term health. I would be glad to be part of that journey with you.

The most common symptoms include irregular or absent periods, acne (particularly along the jawline), unwanted hair growth on the face or body, hair thinning, difficulty losing weight, fatigue, and mood changes. Not every woman with PCOS experiences all of these, and the condition presents differently in different people.

PCOS can make conception more difficult because it often causes irregular or absent ovulation. However, the majority of women with PCOS can conceive with the right support. Optimising metabolic health, regulating cycles, and, where needed, ovulation induction treatment can all significantly improve the chances of pregnancy.

A balanced diet that supports stable blood sugar levels, regular physical activity, stress management, and adequate sleep all play an important role in managing PCOS. Even a modest reduction in weight can restore ovulation and improve androgen levels. These changes work best alongside medical treatment as part of a comprehensive, individualised plan.