Heavy Menstrual Bleeding

Overview

Heavy menstrual bleeding (also called menorrhagia) means your periods are very heavy, last longer than usual, or both. It can disrupt your daily life but is often treatable.

Yes, heavy menstrual bleeding is one of the most common reasons people seek gynaecological care. It affects up to 30% of women of reproductive age.

It can affect anyone who menstruates, but it is most common in teenagers in the first few years after their periods start, and in women in their 40s and early 50s as they approach menopause.

Symptoms

Common symptoms

• Soaking through a pad or tampon every hour for several hours in a row.
• Needing to change protection during the night.
• Passing blood clots larger than a 10p coin.
• Bleeding that lasts more than 7 days.
• Feeling tired, short of breath, or dizzy due to blood loss.

Symptoms in children

• Heavy periods soon after periods start (menarche) may be normal at first, but if bleeding is very heavy or lasts more than 10 days, it should be checked.

Symptoms in older adults

• In women over 45, heavy bleeding may be linked to perimenopause but can also be a sign of fibroids, polyps, or rarely uterine cancer. Any new heavy bleeding after menopause must be evaluated by a doctor.

Causes

Main causes

• Hormonal imbalance: the lining of your womb grows too thick because of irregular ovulation.
• Non‑cancerous growths in the womb: fibroids, polyps, or adenomyosis.
• Bleeding disorders (like von Willebrand disease) that make you bleed more easily.
• Endometriosis – a condition where tissue similar to the womb lining grows outside it.
• Thyroid problems or pelvic inflammatory disease.
• Side effect of some medications (such as anticoagulants).
• Rarely, cancer of the womb or cervix.

Risk factors

• Age – teenagers and women approaching menopause.
• Obesity (excess body fat can affect hormone levels).
• Family history of heavy periods or fibroids.
• Certain medical conditions: thyroid disease, diabetes, or bleeding disorders.

When to see a doctor

See a doctor urgently if:

• If you have any of the emergency symptoms listed above, call your local emergency number immediately.

Book a routine appointment if:

• If your periods have become heavier than usual and are affecting your quality of life – for example, you avoid activities or feel constantly tired.
• If you have bleeding between periods or after sex.
• If you have had heavy periods for more than a few months and they are not improving.

Diagnosis

Your doctor will start by asking about your periods, your general health, and your family history. They may perform a physical exam and order blood tests to check for anaemia and rule out other conditions.

Tests that may be done

• Full blood count (to check for anaemia).
• Ferritin level (to measure iron stores).
• Pelvic ultrasound (to look for fibroids, polyps, or other structural issues).
• Hysteroscopy – a thin camera inserted into the womb to see the lining directly (sometimes with a biopsy).

What to expect at your appointment

You may be asked to keep a period diary tracking flow and symptoms. A pelvic exam may be done, and an ultrasound is usually painless (though you may feel pressure). If a biopsy is needed, it can feel like strong period cramps but is usually quick. Most tests are done in the outpatient clinic.

Treatment

Treatment depends on the cause, your age, and your desire for future pregnancy. The aim is to reduce bleeding, improve quality of life, and prevent anaemia. Options include medications, hormonal treatments, and sometimes surgery.

Self-care at home

• Take iron supplements if advised by your doctor to prevent or treat anaemia.
• Eat iron‑rich foods like dark leafy greens, lean red meat, beans, and fortified cereals.
• Rest when you feel tired, and use heat pads or warm baths to ease cramps.
• Keep a period diary to track your symptoms and share with your doctor.

Medical treatments

Doctors may recommend non‑hormonal medications (such as tranexamic acid or NSAIDs) to reduce bleeding and pain, or hormonal treatments (like the combined contraceptive pill, the progesterone‑only pill, or a hormonal intrauterine system) that help regulate or reduce your periods. These are prescribed based on your individual health and needs. Always discuss options with your healthcare provider.

When is surgery considered?

If medications do not work or there is a structural problem (like large fibroids), surgery may be considered. Options include hysteroscopic removal of a polyp or fibroid, endometrial ablation (destroying the womb lining), myomectomy (removing fibroids while keeping the womb), or hysterectomy (removing the womb). Your doctor will explain the risks and benefits based on your situation.

Living with this condition

Plan ahead: keep spare pads, tampons, or period underwear with you. Wear dark or patterned clothes to hide any leaks. Use a menstrual cup or period pants for extra protection. Track your cycle so you know when heavy days are likely.

Lifestyle tips

• Stay physically active: gentle walking, swimming, or yoga can improve blood flow and reduce stress.
• Manage stress with relaxation techniques, meditation, or talking to a trusted friend.
• Get enough sleep – fatigue can make the physical and emotional load heavier.

Diet and exercise

Eat a balanced diet with plenty of iron and vitamin C (to help absorb iron). Good sources: spinach, broccoli, citrus fruits, lean meat, and lentils. Avoid excessive exercise during very heavy days – rest when needed. Regular moderate exercise throughout the month helps overall health.

Mental health and emotional wellbeing

Heavy periods can cause anxiety, embarrassment, and frustration, especially if they interrupt your work, school, or social life. It can also lead to depression. It is important to talk to your doctor about these feelings – they are not a sign of weakness. Support from friends, family, or a counsellor can help.

Prevention

Not all cases of heavy menstrual bleeding can be prevented, but managing underlying conditions (like thyroid problems or bleeding disorders) can reduce the risk. Maintaining a healthy weight and a balanced diet may help keep your hormones in balance.

Complications

If left untreated

• Iron‑deficiency anaemia: low iron leading to fatigue, weakness, pale skin, and difficulty concentrating.
• Severe anaemia can affect your heart and general health.
• Heavy bleeding may interfere with daily activities, work, and relationships.
• In rare cases, if caused by a serious condition (like cancer), delay in diagnosis may affect outcome.

Long-term outlook

The outlook is very good. Most people with heavy menstrual bleeding can be treated effectively – either with medications, hormonal therapy, or a minor procedure. Symptoms often improve significantly, and many people return to their normal routines. Even if surgery is needed, most people recover well and feel much better.

Find support

International organisations

• NHS – Heavy Periods ↗
• Mayo Clinic – Menorrhagia ↗

Local organisations

• Better Health Channel (Victoria, Australia) ↗ · Australia
• HealthLink BC ↗ · Canada

Helplines

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