It is a benign growth in the wall of the uterus, especially in the muscular layer (myometrium). It is also known as uterine fibroma. They are divided into three types based on where they grow:
• Submucosal, if they grow toward the uterine cavity and are often removed due to their association with infertility and in vitro fertilisation outcomes;
• Subserosal, if they grow toward the outside of the uterus and rarely affect fertility;
• Intramural, if they grow within the muscular wall of the uterus and may influence fertility if they affect the uterine cavity. Their impact is less clear if they do not.
