PCOS symptoms overview for patients

Overview

Polycystic ovary syndrome (PCOS) is a common hormone condition that affects how the ovaries work. It can cause irregular periods, extra body hair, acne, and weight gain. It is not an illness you can catch and it is not your fault.

Yes. PCOS is one of the most common hormone conditions. Around 1 in 10 women and people assigned female at birth have it, although many do not know they have it.

PCOS mainly affects people with ovaries. It usually becomes noticeable after the first period, often in the late teens or early twenties. It can continue up to menopause and beyond in terms of metabolic health.

Symptoms

Common symptoms

• Irregular, missed, or heavy periods
• Excess facial or body hair (called hirsutism)
• Acne or oily skin
• Weight gain or difficulty losing weight
• Thinning hair on the scalp
• Darkened skin patches on the neck, under the breasts, or in the groin
• Mood changes, low mood, or anxiety

Causes

Main causes

• The exact cause is not fully understood, but it is linked to higher levels of androgens (male-type hormones).
• Insulin resistance — when the body does not use insulin well — is common in PCOS.
• Inflammation is also thought to play a role.
• PCOS tends to run in families, so genes are involved.

Risk factors

• Having a parent or sibling with PCOS
• Being overweight or living with obesity
• Having insulin resistance or type 2 diabetes
• A sedentary lifestyle

When to see a doctor

See a doctor urgently if:

• Severe pelvic pain that comes on suddenly
• Very heavy bleeding that does not slow down
• Fever along with pelvic pain

Book a routine appointment if:

• Periods that are irregular, very painful, or stop for many months
• Unwanted hair growth or acne that bothers you
• If you have been trying to get pregnant for over a year without success
• If you are gaining weight without a clear reason

Diagnosis

Doctors diagnose PCOS by asking about your symptoms, doing a physical exam, and often using blood tests and an ultrasound. In most cases, you need at least two of the following three features: irregular periods, higher androgen levels on a blood test, or many small follicles on your ovaries seen on an ultrasound.

Tests that may be done

• Blood tests to check hormone levels and rule out other conditions like thyroid problems
• A pelvic ultrasound scan to look at your ovaries and womb
• A conversation about your cycle, weight changes, hair growth, and acne
• Blood sugar and cholesterol tests to check your overall metabolic health

What to expect at your appointment

The diagnosis process can take time. You may be referred to a specialist such as a gynaecologist or an endocrinologist (a hormone doctor). They will rule out other causes and help you decide the next steps. You are allowed to ask questions and take time to understand the findings.

Treatment

PCOS cannot be cured, but its symptoms can be managed very well. Treatment depends on your personal goals — whether you want a regular period, help with fertility, less unwanted hair, or support with weight. Your care plan should be built with you, not just handed to you.

Self-care at home

• Keep a regular sleep routine and aim for 7–9 hours of quality sleep
• Find stress-reducing activities like walking, journaling, or breathing exercises
• Track your periods in an app or calendar so you can notice changes
• Reach out early for emotional support if you feel anxious or low

Medical treatments

Healthcare providers may use a range of medicines to help regulate the menstrual cycle, lower insulin levels, reduce excess hair, or support ovulation if you are trying to conceive. Hormonal treatments are often used to create a regular cycle. Some medications are not safe during pregnancy, so it is important to talk to your doctor before trying to get pregnant. Never start or change treatments without professional guidance.

When is surgery considered?

Surgery is rarely needed. In a few cases, a procedure called laparoscopic ovarian drilling may be offered if medicines have not helped with ovulation. This is not a first-line treatment and is only considered after careful discussion.

Living with this condition

Living with PCOS can sometimes feel frustrating because symptoms affect your appearance, mood, and energy. But small, steady changes make a real difference. Focus on what you can control — physical activity, balanced meals, sleep, and finding a healthcare team that listens.

Lifestyle tips

• Move your body regularly — even a daily brisk walk helps
• Build meals around vegetables, lean protein, whole grains, and healthy fats
• Limit sugary drinks and highly processed snacks
• Stay hydrated throughout the day
• Surround yourself with people who support you without judging

Diet and exercise

There is no one-size-fits-all PCOS diet. A Mediterranean-style way of eating — rich in vegetables, fruits, fish, nuts, and olive oil — is often recommended. Exercise does not need to be intense; 30 minutes of brisk walking, cycling, or swimming most days is a good first goal. If that feels too much, start with 10 minutes and build up slowly.

Mental health and emotional wellbeing

PCOS is linked to higher rates of depression, anxiety, and low self-esteem. Dealing with unwanted hair, acne, weight gain, or fertility concerns can be distressing. These feelings are valid, and you deserve support. Please talk to your GP or a mental health professional. If you are in crisis, call your local emergency services or mental health crisis line immediately.

Prevention

PCOS itself cannot be prevented because it is partly genetic. However, you can reduce the chance of developing some symptoms and long-term problems by staying active, eating well, and maintaining a weight that is healthy for you.

Vaccines

There is no vaccine for PCOS. But it is still important to keep up with routine vaccines, such as flu and COVID-19, especially if you have PCOS and are overweight or have diabetes.

Screening programmes

If you have PCOS, your healthcare provider may suggest regular checks for blood pressure, cholesterol, and blood sugar. These are not PCOS tests, but they help catch metabolic problems early and prevent complications.

Complications

If left untreated

• Type 2 diabetes
• High blood pressure and high cholesterol
• Infertility or taking longer to get pregnant
• Sleep apnoea (pauses in breathing during sleep)
• Slightly higher risk of cancer of the womb lining (endometrial cancer), especially if you have very irregular periods over many years

Long-term outlook

With the right support, PCOS is very manageable. Most people with PCOS can become pregnant if they wish, often with medical help. Even if fertility is not a goal, you can protect your heart, metabolism, and mood with healthy habits and regular care. PCOS is a long-term condition, but it is not a life sentence — many people live full, active, and healthy lives.

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