Uterine fibroids

Uterine fibroids are non-cancerous growths made up of muscle and fibrous tissue that develop in or around the uterus. The exact cause is unknown, but it may be linked to the hormone oestrogen. They are also known as myomas. The symptoms depend on the location of the fibroid. They can grow outside or inside of the uterine wall, or grow into the lining of the uterus. Fibroids inside the lining of the uterus may cause heavy periods and lead to anaemia, miscarriage or infertility.