There are three major types of uterine fibroids that are classified depending on their location on the uterus. Intramural fibroids are growths within the uterine muscle. Submucosal fibroids grow in the inner lining of the uterus (endometrium) while Subserosal fibroids are found in the outer surface of the uterus.
In some cases, the Submucosal or Subserosal fibroids tend to hang from a stalk-like structure inside or outside of the uterus. These are called pedunculated fibroids. Additionally, uterine fibroids are also classified depending on their size. You can have one or many fibroids in your uterus. Typically, many different types and sizes of fibroids can grow in one uterus.