The signs, in four groups
The symptoms are not one long list of equals. They are four groups, and they differ a great deal in how much they mean — which is the distinction most articles leave out. Excess hair growth on its own is a strong sign. Acne on its own, or hair loss on its own, is a weak one.
| Group | Signs | How strong |
|---|---|---|
| Irregular cycles | Under 21 days or over 35, or fewer than eight cycles a year | Strong — it is where the guideline starts |
| Hormonal signs | Excess facial and body hair, persistent acne, hair loss | Excess hair: strong. Acne or hair loss alone: weak |
| Metabolic signs | Weight change, darkened skin on the neck or under the arms | Associated with the condition, but not a diagnostic criterion |
| Family history | A mother or sister with the condition | Very weak — the international guideline does not use it to assess you |
One point that matters especially here in the Gulf: removing the hair does not remove the sign. The guideline says plainly that many women treat this cosmetically, which makes the sign look milder than it is, and that a woman's own account of unwanted hair growth deserves close attention even when nothing is visible on examination. If you wax, thread or laser regularly, say so.
What counts as irregular
The guideline gives numbers, and they change depending on how long it has been since your first period:
- First year after your first period: irregular is normal, and part of puberty.
- One to three years after: under 21 days or over 45.
- Three years on, until menopause: under 21 days or over 35, or fewer than eight cycles a year.
- At any point after the first year: a single cycle longer than 90 days.
That first-year exemption is the line most articles drop, and dropping it worries a lot of teenagers for nothing. One more thing worth knowing: a regular cycle does not guarantee ovulation. It is possible to bleed on schedule and not ovulate.
There are no cysts — which is why the name changed
What an ultrasound shows is not pathological cysts. It is ordinary small follicles, more of them than usual — and the guideline counts them: twenty or more in one ovary. Nothing is trapped, and nothing is passed.
In May 2026 the condition was renamed for exactly this reason. The name “polycystic ovary syndrome” is inaccurate: it implies cysts that are not there, and it compresses a wide hormonal and metabolic condition into a misunderstanding about ovaries. The Endocrine Society put it plainly — there is no increase in abnormal cysts on the ovary.
Is there a mild and a severe version?
No. The guideline has no grades called mild or severe, and the condition is not scored or given a percentage. What actually differs is which signs you have and how much they affect your day — and that is a conversation with a doctor, not a number on a scale.
What a doctor actually does
A diagnosis is not a set of answers. It starts by ruling other things out. A doctor will usually check your thyroid and prolactin among others first, because those cause irregular cycles too, and then test testosterone.
What surprises most people: an ultrasound is often not needed. Where irregular cycles and clear hormonal signs are both present, the guideline says imaging is not required to diagnose. In adolescence it recommends not doing one at all, because it cannot be read reliably at that age.
And if you are on the combined pill, say so. Hormone results are hard to interpret while you are taking it, and the appointment may need to be sequenced differently.
What about getting pregnant?
This is the part that frightens people most and is overstated most. The condition is among the commonest causes of ovulation problems, and ovulation problems can delay pregnancy. It is not a verdict of infertility: the NHS describes it as something that “can sometimes cause problems getting pregnant”, and the ovulation problems have well-established, effective treatments a doctor can prescribe. Nothing in this article should be read as a way to prevent pregnancy or to achieve one.
What Shaden does
Shaden does not diagnose, and no app can — diagnosis begins by ruling other causes out with blood tests. What it does is sort the signs into their groups, then check your answers against what you have actually logged. You said your cycles are irregular? We have their lengths. You said the acne is persistent? We have how often you logged it.
The point is that walking into an appointment with “three cycles over 40 days in the last six months” is worth many times more than “my periods are irregular”.