Fibroids are named according to where they are found in your womb. Intramural fibroids grow within the muscular wall of your womb; subserous fibroids grow from the outside wall of your womb into your pelvic cavity. They can become very large. Submucosal fibroids grow from the inner wall of your womb into the space inside your womb while pedunculated fibroids grow from the outside of your womb. These fibroids are almost free of the wall of your womb and are only attached by a narrow stalk.
Attribution: BUPA