PCOS makes it harder, not impossible.

PCOS is a hormonal and metabolic condition in which ovulation is irregular or absent, male-type hormones (androgens) run higher, and the ovaries hold many small follicles.

Underneath much of it sits insulin resistance: the body makes more insulin, and more insulin pushes the ovary to make more androgen, which stops one follicle being picked each month. It is a spectrum, from slightly long cycles to months without a period. Slim women can have it too. In 2026 an international consensus renamed it PMOS (polyendocrine metabolic ovarian syndrome), to reflect that it affects the whole body.

Yes. Many women with PCOS conceive naturally, and most who need help respond to simple treatment.

The core problem is ovulation. No ovulation means no egg to fertilise, and no reliable day to time intercourse to. The eggs themselves are usually not the problem, and women with PCOS are generally not short of them. That is good news: the task is to restore ovulation, not replace what is missing.

PCOS is diagnosed when at least two of three signs are present (irregular ovulation, high androgens on a blood test or on the skin, polycystic-looking ovaries on a scan) and look-alike conditions are ruled out.

Thyroid disease and a raised prolactin can look the same and are treated differently, so both are checked. Three things PCOS is not. The 'cysts' are not cysts: they are follicles that stopped growing and never need draining. PCOD is not a separate, milder disease; ask which signs you actually meet. And PCOS is not infertility.

Treatment is a ladder: weight and metabolic health first, then ovulation tablets such as letrozole with scans, then low-dose injections, and IVF only if those do not work.

For women carrying extra weight, a modest, steady loss can restore ovulation on its own. Targets are set with your doctor, not from a chart. Letrozole is now generally preferred to clomiphene as the first tablet, and every cycle is tracked on scans. If tablets fail, low-dose injections follow, often with IUI when tubes are open and the sperm sample is good.

PCOS ovaries react strongly to fertility drugs, so the two risks to watch are ovarian hyperstimulation (OHSS) and twins or more.

That is why doses start low and scans are frequent. A cycle with too many mature follicles is stopped, not continued. In IVF, women with PCOS often make many eggs, so embryos are usually frozen and transferred in a later cycle, which lowers the OHSS risk.

Yes. PCOS is a lifelong metabolic condition linked to type 2 diabetes, high cholesterol and, if periods stay absent for long, a thickened womb lining.

In pregnancy it raises the chance of gestational diabetes and high blood pressure, so tell your obstetrician early. Outside pregnancy, periodic checks of blood sugar, blood pressure and cholesterol are worth doing, and long gaps without a period need a plan.