PCOS symptoms when to seek care

Overview

PCOS is a common hormone problem that affects people with ovaries. In PCOS, the body makes too much of certain hormones (androgens), which can lead to irregular periods, acne, extra hair growth, and trouble with ovulation. It can also affect how the body uses insulin, which is the hormone that controls blood sugar.

Yes, PCOS is very common. It affects around 1 in 10 people who have periods, though many may not know they have it.

PCOS can affect anyone with ovaries, usually starting during the teenage years or early adulthood. It can happen at any age, and symptoms may change over time, including after menopause.

Symptoms

Common symptoms

• Irregular, missed, or very light periods
• Excess hair growth on the face, chin, chest, or belly
• Acne or oily skin
• Thinning hair on the scalp
• Weight gain or trouble losing weight
• Dark, thick patches of skin on the neck, armpits, or under the breasts
• Difficulty getting pregnant due to irregular ovulation
• Mood changes, such as anxiety or low mood

Symptoms in children

• Very irregular periods that started at puberty and don't settle into a normal cycle
• Severe acne that doesn't respond to over-the-counter products
• Unusual hair growth on the face or body
• Weight gain that seems hard to control
• Dark patches of skin on the neck or in skin folds

Symptoms in older adults

• Changes in period patterns, such as heavy or unpredictable bleeding
• Worsening of blood sugar or cholesterol problems
• New or worsening high blood pressure
• Hair thinning or changes in body hair
• Persistent acne or oily skin

Causes

Main causes

• The exact cause of PCOS isn't fully known, but it likely results from a combination of genetic and environmental factors.
• Hormone imbalances, especially higher levels of androgens (male-type hormones), interfere with normal ovulation and cause many PCOS symptoms.
• Insulin resistance — when the body doesn't use insulin effectively — can make the ovaries produce more androgens.

Risk factors

• A family history of PCOS (if a parent or sibling has it)
• Being overweight or having obesity
• Insulin resistance or type 2 diabetes
• Certain ethnic backgrounds (some studies note higher risk in South Asian, African, and Middle Eastern populations)

When to see a doctor

See a doctor urgently if:

• If you have severe abdominal or pelvic pain
• If you have very heavy bleeding that soaks through pads or tampons quickly
• If you have possible pregnancy symptoms and pelvic pain

Book a routine appointment if:

• If your periods are irregular, very heavy, or you have gone months without a period
• If you're bothered by acne, unwanted hair growth, or hair loss
• If you're trying to conceive and would like support with fertility
• If you've gained weight recently and have other symptoms like thinning hair or dark skin patches

Diagnosis

Doctors typically diagnose PCOS by asking about your symptoms, checking your blood pressure and body mass index (BMI), and doing a physical exam. They may also order blood tests and an ultrasound of your ovaries.

Tests that may be done

• Blood tests to check hormone levels (such as androgens) and rule out other conditions
• Blood sugar (glucose) and insulin level tests
• Ultrasound to look at the ovaries and the thickness of the womb lining
• Cholesterol and triglyceride tests to assess heart health risks

What to expect at your appointment

Your doctor will talk with you about your health history and symptoms. The appointment may take a bit longer because several checks are needed. You might be asked to have a scan and come back for results, then discuss a personalized care plan.

Treatment

PCOS is a long-term condition, but there are many ways to manage it. Treatment focuses on easing your symptoms, helping you feel well, and reducing the risk of future problems. A healthcare team — often including a GP, gynaecologist, dietitian, or fertility specialist — can tailor care to your needs.

Self-care at home

• Aim for regular physical activity — like brisk walking or cycling — most days of the week
• Try to keep a consistent sleep schedule and get enough rest
• Find ways to reduce stress, such as mindfulness, hobbies, or talking to friends
• Keep a symptom diary to help you and your doctor see patterns
• If you smoke, consider support to quit

Medical treatments

Medicines are chosen based on your individual symptoms and goals. For example, some treatments help regulate the menstrual cycle, some reduce excess hair growth or acne, and others help the body use insulin better. Hormone-based treatments — like the combined contraceptive pill or progestogen-only options — are sometimes used to help periods become more regular. For people trying to conceive, there are fertility medicines that stimulate ovulation. Your doctor will explain the benefits, side effects, and risks of each approach. Always discuss any medicine before starting it.

When is surgery considered?

Surgery is rarely needed for PCOS. In a few cases, a procedure called laparoscopic ovarian drilling (using a small camera and a tiny electrical current to make very small holes on the ovary surface) may be offered to help trigger ovulation when medicines haven't worked. This is only considered after thorough discussion with a specialist.

Living with this condition

Living with PCOS can feel like a lot to manage, but small, steady changes can make a real difference. Focus on building routines that support balanced hormones, like regular meals, movement you enjoy, and restful sleep. Some days you may feel frustrated — that's okay. Be kind to yourself and reach out for help when you need it.

Lifestyle tips

• Move your body in ways that feel good — even 15-minute walks help
• Try to include more vegetables, whole grains, lean proteins, and healthy fats in your meals
• Watch portion sizes and limit ultra-processed foods and sugary drinks
• Build a support network of people who understand what you're going through
• Track your cycles and symptoms to notice patterns and share them with your doctor

Diet and exercise

A balanced diet and regular exercise can improve insulin sensitivity, help with weight management (if that's a goal), and reduce some PCOS symptoms. You don't need a strict diet — small practical changes, like adding more fibre and protein, and being active after meals, can help steady blood sugar. A dietitian can help you build a plan that fits you.

Mental health and emotional wellbeing

PCOS can affect how you feel about your body and your self-esteem. Many people with PCOS experience anxiety, depression, or feeling frustrated. Your feelings matter. Talking to a therapist or counsellor — or joining a support group — can be helpful. There are also crisis helplines if you're struggling emotionally.

Prevention

PCOS itself cannot be prevented because it's influenced by factors like genetics. However, early recognition and management can prevent some of the long-term complications, like diabetes, high blood pressure, and womb lining problems. Screening for these conditions is a normal part of PCOS care.

Complications

If left untreated

• Higher risk of type 2 diabetes due to insulin resistance
• High blood pressure and unhealthy cholesterol levels, which increase heart disease risk
• Infertility or subfertility from irregular ovulation
• Increased risk of endometrial (womb lining) cancer if periods are very infrequent for many years
• Sleep apnoea (pauses in breathing during sleep)
• Depression and anxiety

Long-term outlook

The outlook for PCOS is positive with the right support. Many people manage their symptoms successfully and live healthy, active, and fulfilling lives. With planned care, most people can also conceive if they wish. PCOS is a condition you can live well with — it doesn't have to define you.

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