Polycystic ovary syndrome affects roughly one in ten women, and it is one of the most commonly misunderstood diagnoses in gynaecology — including by women who already have it.
What PCOS actually is
Despite the name, PCOS is not primarily a disease of cysts. The follicles seen on ultrasound are not cysts at all: they are immature eggs that stalled part-way through development because ovulation did not complete.
At its core, PCOS is a hormonal and metabolic condition. Higher levels of androgens interfere with normal ovulation, and in many women insulin resistance drives the process further.
How it is diagnosed
Diagnosis requires two of the following three, once other causes have been excluded:
- Irregular or absent ovulation — typically cycles longer than 35 days, or fewer than eight periods a year
- Clinical or laboratory evidence of excess androgens — acne, unwanted hair growth, scalp thinning, or a raised testosterone level
- Polycystic ovarian appearance on ultrasound
Note carefully: a scan alone does not diagnose PCOS. Many women with entirely normal cycles have polycystic-looking ovaries, and being told you have PCOS on the basis of a single scan is one of the most common errors I correct in clinic.
The symptoms, and what causes each one
- Irregular periods: ovulation is not completing, so the hormonal signal to shed the lining never arrives on schedule.
- Difficulty conceiving: not because the eggs are poor, but because they are released unpredictably or not at all.
- Acne and unwanted hair: the direct effect of raised androgens on skin and follicles.
- Weight that resists dieting: insulin resistance makes fat storage easier and fat loss slower — it is a physiological headwind, not a failure of willpower.
- Hair thinning at the crown: androgenic effect on the scalp, and often the most distressing symptom of all.
- Mood and anxiety symptoms: genuinely more common in PCOS, and worth treating in their own right.
Why it matters beyond fertility
PCOS carries a higher long-term risk of type 2 diabetes, gestational diabetes, high cholesterol and high blood pressure. If periods are very infrequent, the uterine lining can also thicken over years without regular shedding, which raises the risk of endometrial changes.
This is why treatment is worthwhile even for women who are not trying to conceive — and why an annual review matters.
Treatment: matched to what you want now
If you want regular cycles and clearer skin
Combined hormonal contraception regulates bleeding, protects the lining and reduces androgenic symptoms. Anti-androgen medication may be added where acne or hair growth is prominent.
If you are trying to conceive
Ovulation induction is the first-line approach, usually with letrozole, which has better evidence than clomiphene in PCOS. Cycles are monitored by ultrasound so we can see whether a follicle is genuinely developing. Metformin is added where insulin resistance is significant.
If the metabolic side is the priority
A five to ten percent reduction in body weight can restore ovulation in a substantial proportion of women. Resistance training improves insulin sensitivity more efficiently than cardiovascular exercise alone, and a lower-glycaemic eating pattern is more effective than simple calorie restriction.
Why PCOS is so common in the Gulf
PCOS affects roughly one in ten women worldwide, but studies across the GCC have reported rates at the higher end of that range, and sometimes above it. Three factors specific to life here are worth understanding, because two of them are modifiable.
Vitamin D deficiency
Despite the sunshine, vitamin D deficiency is widespread among women in the UAE — indoor working hours, air-conditioned life and modest dress all reduce exposure. Low vitamin D is associated with worse insulin resistance, which is the engine driving most PCOS symptoms. This is why I test vitamin D in every suspected case and treat it properly rather than as an afterthought.
Insulin resistance and diet
The UAE has one of the world’s higher rates of type 2 diabetes, and PCOS raises that risk further. A diet heavy in refined carbohydrates — white rice, bread, sweetened karak and juices — feeds the same insulin resistance that keeps ovulation suppressed. Adjusting this is not about weight loss for its own sake. Even a five to ten per cent reduction in body weight can restore ovulation in many women.
Family history
PCOS runs strongly in families, and with the extended family structures common here, the pattern is often visible once you ask. If your mother, sisters or aunts had irregular cycles, difficulty conceiving or early diabetes, mention it. It changes how closely I screen you.
What PCOS is not
A great deal of misinformation circulates, and correcting it matters as much as any prescription.
- It is not caused by anything you did. Not stress, not contraception, not a past termination.
- It does not mean you cannot have children. Most women with PCOS conceive, many without any medical help at all.
- Cysts on a scan are not the diagnosis. Around one woman in four has polycystic-looking ovaries and no syndrome whatsoever.
- It does not go away with one course of treatment. PCOS is managed across a lifetime, and what you need at twenty-five differs from what you need at forty.
- Losing weight is not the whole answer. Lean women get PCOS too, and telling them to lose weight is both useless and insulting.
Living with PCOS long term
Because PCOS is lifelong, the plan should change as your priorities do. In your twenties the focus is usually cycle regulation and skin. In your thirties it shifts to fertility. From your forties onward it becomes metabolic and cardiovascular protection, which is the part most often neglected.
Practically, that means an annual review even in years when nothing feels wrong: blood pressure, glucose or HbA1c, a lipid profile, and a conversation about the endometrium if your cycles are widely spaced. Fewer than four periods a year warrants attention, because the uterine lining needs to shed regularly.
Women who understand their own condition manage it far better than those handed a prescription and sent away, which is why I spend most of a first PCOS consultation explaining rather than prescribing.
What to expect at your appointment
A proper PCOS assessment involves a cycle history, examination, pelvic ultrasound and blood tests including testosterone, LH, FSH, AMH, thyroid, prolactin, fasting glucose or HbA1c, and a lipid profile. You should leave with a diagnosis or a clear reason why it is not PCOS — not a prescription and a shrug.
This article is general information and does not replace a consultation. PCOS management is highly individual.
On supplements: inositol has reasonable evidence for improving ovulation and insulin sensitivity. Vitamin D correction is worthwhile because deficiency is near-universal in the Gulf. Most other supplements marketed for PCOS have very little behind them.