Heavy periods

Overview

Heavy periods (also called menorrhagia) are when you lose more blood than usual during your period. This can mean needing to change your pad or tampon very often, having periods that last longer than a week, or passing large blood clots. It can affect your energy, mood, and daily life.

Yes, heavy periods are very common. Many people who menstruate experience them at some point, especially during their teenage years or as they approach menopause.

Heavy periods can affect anyone who menstruates, including teenagers, women in their 30s and 40s, and those approaching menopause. It is also common in people with certain medical conditions like fibroids or endometriosis.

Symptoms

Common symptoms

• Needing to change your pad or tampon every hour or more often.
• Periods lasting longer than 7 days.
• Passing blood clots larger than a 50p coin.
• Feeling very tired, short of breath, or dizzy (signs of anaemia).
• Period pain that is severe and stops you from doing normal activities.

Symptoms in children

• Very heavy bleeding from the start of a period.
• Soaking through clothes and bedding frequently.
• Missing school or activities because of heavy flow or pain.

Symptoms in older adults

• Heavy periods that are unpredictable and may come closer together or further apart as you approach menopause.
• Flooding – a sudden heavy gush of blood that soaks through protection.
• Bleeding between periods or after sex (this should always be checked by a doctor).

Causes

Main causes

• Hormonal imbalances – when oestrogen and progesterone are not working together properly.
• Uterine fibroids – non-cancerous growths in or around the womb.
• Endometriosis – tissue similar to the womb lining growing outside the womb.
• Polyps – small, benign growths on the lining of the womb.
• Adenomyosis – the womb lining grows into the muscular wall of the womb.
• Bleeding disorders, such as von Willebrand disease.
• Thyroid problems or other medical conditions affecting hormones.
• Certain contraceptive devices, like the copper coil (IUD), can make periods heavier.
• Sometimes no cause is found – this is still normal and treatable.

Risk factors

• Being a teenager (the first few years after starting periods).
• Approaching menopause (women over 40).
• Being overweight or obese.
• Having a family history of fibroids, endometriosis, or bleeding disorders.
• Using blood-thinning medications (always tell your doctor if you take these).

When to see a doctor

See a doctor urgently if:

• If you have very heavy bleeding that does not stop or makes you feel very unwell.
• If you feel lightheaded, have chest pain, or have cold clammy skin.
• If you have sudden severe pain in your pelvis or lower tummy.

Book a routine appointment if:

• If your periods are affecting your quality of life – for example, causing you to miss work, school, or social activities.
• If you have heavy periods for several months in a row.
• If you feel tired, short of breath, or look pale (possible anaemia).
• If you have bleeding between periods or after sex (even if not heavy).

Diagnosis

Your doctor will ask about your symptoms, medical history, and family history. They may also do a physical examination and order tests to find the cause of the heavy bleeding.

Tests that may be done

• Blood test to check for anaemia (low iron) or other conditions.
• Ultrasound scan (often done vaginally) to look at the womb and ovaries.
• Endometrial biopsy – a small sample taken from the lining of the womb to check for problems.
• Hysteroscopy – a thin camera passed into the womb to look at the lining directly.

What to expect at your appointment

Your doctor will explain what each test involves and why it may be helpful. You can ask questions and decide together what is right for you. If needed, you may be referred to a specialist (gynaecologist) for further care.

Treatment

Treatment depends on the cause of the heavy periods and how much they affect your life. Options include self-care, medication, and minor procedures. The goal is to reduce bleeding, improve your energy, and help you feel in control.

Self-care at home

• Keep track of your periods using a calendar or app – this helps you and your doctor.
• Take ibuprofen or similar anti-inflammatory painkillers as recommended by a pharmacist or doctor – these can reduce bleeding and pain.
• Use pads, period pants, or tampons designed for heavy flow.
• Rest and allow yourself time off if you feel unwell.
• Eat iron-rich foods like red meat, leafy greens, beans, and fortified cereals to help prevent anaemia.

Medical treatments

There are several types of medication that can help. These include hormonal options like the contraceptive pill, the hormonal coil (IUD), or other tablets that reduce bleeding. Your doctor will discuss the benefits and possible side effects of each option. It is important to only use treatments prescribed for you – do not take any medication without professional advice.

When is surgery considered?

Surgery may be considered if other treatments have not worked or if you have a condition like fibroids or adenomyosis. Options include removing fibroids, destroying the womb lining (endometrial ablation), or removing the womb (hysterectomy). Your specialist will explain the options, recovery time, and what to expect. You will be involved in the decision.

Living with this condition

Heavy periods can be challenging, but with planning and support you can manage your daily life. Carry extra period supplies so you are prepared. Talk to your employer, teacher, or family about any adjustments you need – for example, flexible work or rest breaks.

Lifestyle tips

• Try to reduce stress with relaxation, deep breathing, or gentle activities like yoga.
• Drink plenty of water to stay hydrated.
• Use a hot water bottle or take a warm bath to ease cramping.
• Get enough sleep – rest helps your body recover.

Diet and exercise

Eating a balanced diet with enough iron helps prevent anaemia. Good sources include red meat, spinach, lentils, and fortified breakfast cereals. Pair them with vitamin C (like oranges or bell peppers) to help absorption. Gentle exercise, such as walking or swimming, can improve your mood and reduce period pain. Listen to your body and rest when you need to.

Mental health and emotional wellbeing

Heavy periods can feel worrying, embarrassing, or frustrating. They may affect your confidence or make you feel isolated. It is common to feel anxious or low. If these feelings persist, talk to your doctor – you are not alone, and help is available. Talking therapies can also support your emotional well-being.

Prevention

Heavy periods cannot always be prevented, but you can reduce the risk of complications. Eat a healthy diet rich in iron to prevent anaemia. Attend regular check-ups with your doctor. If you have a known cause, following your treatment plan can help prevent symptoms from getting worse. There is no guaranteed way to stop heavy periods from happening, but early treatment can make a big difference.

Complications

If left untreated

• Anaemia (low iron) – causing tiredness, weakness, pale skin, and shortness of breath.
• Severe pain that can interfere with work, school, and relationships.
• Disruption to your quality of life – missing activities or feeling unable to plan ahead.
• In rare cases, very heavy bleeding can lead to a drop in blood pressure, which needs urgent medical help.

Long-term outlook

Most causes of heavy periods can be treated effectively. With the right care, most people see a big improvement in their symptoms and can return to normal activities. Your doctor will work with you to find the best approach – you do not have to live with heavy periods. There is hope and help available.

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