PCOS: An Overview of Symptoms and Support
Polycystic ovary syndrome, PCOS, is the most common hormonal condition affecting women of reproductive age, yet it is frequently misunderstood and often takes years to diagnose. It affects hormones, periods, fertility and metabolism, and while there is no cure, there is a great deal that can be done. Understanding the condition is the first step to managing it well.
What PCOS is
In PCOS, the ovaries produce higher than usual levels of androgens, the male-type hormones that women also produce in small amounts. The result is a pattern of symptoms that includes irregular or absent periods, acne, excess facial or body hair, and sometimes small follicles on the ovaries seen on ultrasound. The name comes from those follicles, although not everyone with the condition has them.
The common symptoms
- Irregular, infrequent or absent periods.
- Acne and oily skin, especially in the late teens and twenties.
- Excess hair on the face, chest or back.
- Weight gain, particularly around the middle.
- Difficulty getting pregnant, because ovulation is unreliable.
Very few women have every symptom. Two of the three diagnostic strands are usually enough for a diagnosis, and the picture varies widely from person to person.
How it is diagnosed
Diagnosis in the UK follows a set of criteria: irregular periods, signs of high androgens on a blood test or in symptoms, and polycystic ovaries on ultrasound. Two out of three are needed. Your GP can arrange the blood tests and ultrasound, and it is worth being persistent if you suspect it, because the average time to diagnosis remains far too long.
The insulin connection
A key part of PCOS is insulin resistance, where the body needs extra insulin to control blood sugar. That drives both weight gain and the ovaries' production of androgens, which creates a cycle: more androgens, worse symptoms, more weight. This is why diet and weight management are not afterthoughts in PCOS; they are central treatments, and the links between weight and hormones are especially relevant here.
Symptoms and what helps
| Symptom | Why it happens | What helps |
|---|---|---|
| Irregular periods | Ovulation unreliable | Weight loss where needed, sometimes medication |
| Acne and hair | Higher androgens | Skincare and medicines that lower androgens |
| Weight gain | Insulin resistance | Diet and movement, often with support |
| Fertility problems | Ovulation unreliable | Weight management, then specialist options |
The long-term health picture
PCOS also carries a higher risk of type 2 diabetes, high blood pressure and endometrial changes over time, which is why regular check-ups matter. The good news is that the same habits that manage symptoms, steady weight, activity and sleep, also reduce those risks. If weight is a persistent struggle, the overview of weight management medication sets out the realistic options.
Where to start
Start with the things that cost nothing: steady sleep, regular movement and a diet that keeps blood sugar stable. That approach is so effective for PCOS that it deserves its own guide, which is exactly what our article on PCOS and diet covers. If periods are a concern, the guide to irregular periods helps you interpret your cycle.
A PCOS diagnosis can feel overwhelming, but it is also an explanation, and an explanation points the way to action. Work with your GP, build the habits that genuinely move the dial, and take each symptom one at a time rather than trying to fix everything at once.