What Is Menorrhagia? Having a Heavy Period.

Menorrhagia is the medical term for abnormally heavy or prolonged menstrual bleeding. It is one of the most common gynaecological complaints, affecting around 1 in 3 women at some point in their lives. While heavy periods can be distressing and disruptive to daily life, menorrhagia is treatable — and understanding the signs is the first step.

The following are the most common symptoms of menorrhagia. If you experience several of these regularly, speak to your doctor or gynaecologist.

1. Soaking Through Period Products Rapidly
   Needing to change a pad or tampon every hour or two for several consecutive hours is a key sign of abnormally heavy bleeding. This is one of the most reliable indicators that your flow may exceed the normal range.
2. Passing Large Blood Clots
   Passing blood clots larger than a 50p coin (or a quarter) during your period is considered a sign of heavy menstrual bleeding. Occasional small clots can be normal, but large or frequent clots may indicate an underlying issue.
3. Bleeding Lasting Longer Than 7 Days
   A typical menstrual cycle lasts between 3 and 7 days. Periods that consistently run longer than this — especially with heavy flow throughout — may meet the clinical definition of menorrhagia.
4. Needing to Use Double Protection
   Wearing both a tampon and a pad simultaneously, or using a pad at night in addition to other protection, to manage leakage is a strong indicator of heavy flow.
5. Disrupted Sleep Due to Bleeding
   Waking during the night to change period products, or experiencing leakage during sleep despite protection, suggests blood loss that goes beyond a typical period.
6. Fatigue and Shortness of Breath
   Heavy menstrual bleeding can lead to iron-deficiency anaemia — a condition where the body lacks enough iron to produce healthy red blood cells. Common symptoms of anaemia associated with menorrhagia include:
   Persistent tiredness or exhaustion
   Shortness of breath during ordinary activities
   Heart palpitations
   Pale skin
   Difficulty concentrating
7. Pelvic Pain or Pressure
   Some people with menorrhagia experience cramping or a feeling of heaviness and pressure in the lower abdomen or pelvic area, particularly during their period. This can be associated with underlying conditions such as fibroids or endometriosis.
8. Avoiding Normal Activities Due to Period
   If heavy bleeding is causing you to cancel plans, avoid exercise, or stay home from work or school on a regular basis, this is a sign that your period is having a significant impact on your quality of life — and that it warrants medical attention.