WHAT CAUSES
HEAVY MENSTRUAL
BLEEDING (HMB)?
WHAT CAUSES HEAVY MENSTRUAL BLEEDING (HMB)?
In almost 50% of women with HMB, there is no obvious cause. However, some conditions have been linked to HMB, including:
POLYCYSTIC OVARY SYNDROME (PCOS)
A common condition caused by an imbalance of reproductive hormones that affects how a woman’s ovaries work.
PELVIC INFLAMMATORY DISEASE(PID)
An infection in the upper genital tract (the womb, fallopian tubes or ovaries) that can cause pelvic or abdominal pain and bleeding after sex or between periods.
FIBROIDS
Non-cancerous growths that develop in or around the womb.
ENDOMETRIOSIS
When small pieces of the womb lining are found outside the womb, such as in the fallopian tubes, ovaries, bladder or vagina.
HYPOTHYROIDISM
An underactive thyroid, where the thyroid gland doesn't produce enough hormones, causing tiredness, weight gain and feelings of depression.
CERVICAL OR ENDOMETRIAL POLYPS
Non-cancerous growths in the lining of the womb or cervix (neck of the womb).
BLOOD CLOTTING
Disorders von Willebrand's disease, haemophillia, platelet function disorders and thrombocytopenia are all examples of disorders that can impact on clotting.
CANCER OF THE WOMB
Cancerous growths that develop in or around the womb.
It is important to note that, whether or not a direct cause can be found, HMB is usually a treatable condition and there are choices available for you to discuss with your GP.
Don't suffer in silence, you are not alone.
DISCUSS YOUR CHOICES WITH YOUR GP
TREATING HEAVY MENTRUAL BLEEDING (HMB)?
A WIDE RANGE OF OPTIONS
Information on the range of options available for HMB…
PP-UN-WHC-GB-0279 July 2025