Fibroids that protrude into the cavity of the uterus are called sub mucosal fibroids and can certainly be a cause of irregular, heavy and prolonged bleeding. They may also cause intramenstrual and post coital bleeding.

Fibroids that are sub mucosal should be resected prior to couples undertaking fertility treatment and resected if causing menstrual problems. This operation is performed by means of an operation called Hysteroscopy with trans cervical passage of a special instrument that shaves off the fibroid within the uterus. This is usually performed as a day case procedure and sometimes requires suppression of hormones prior to the surgery being undertaken, depending on the size of the fibroid.