Fibroids are non-cancerous growths in the muscles of the uterus that can range in size from a pea to a melon. You can have one or two, or as many as 20. It’s not known exactly what causes them, but it’s thought they are due to hormones, in particular oestrogen. Women over 40 usually get them, and they are more likely to be found in those who have never had children, or had their first child late in life.
Other conditions related to overactive oestrogen, such as endometriosis, can increase your chances of getting fibroids. Fibroids are usually diagnosed by ultrasound. Sometimes they cause no symptoms, but the most common sign is heavy menstrual bleeding and sometimes pain. Very heavy bleeding can lead to anaemia. If your fibroids are small, or there aren’t many of them, your doctor may suggest simply monitoring them. But if they are large and causing problems, you may need surgery to remove them.