What type of myoma is less likely to cause abnormal uterine bleeding due to its location?

Subserosal myomas are located on the outer surface of the uterus, often projecting outward into the abdominal cavity. Because of their positioning, subserosal myomas tend to have a lesser impact on the uterine cavity and endometrial lining, which are critical areas involved in menstrual regulation and potential bleeding. This positioning means they are less likely to obstruct the uterine cavity or disrupt normal endometrial function compared to other types of myomas.

In contrast, submucosal myomas, which grow just beneath the endometrial lining, can significantly interfere with normal uterine function and lead to abnormal bleeding. Intramural myomas, located within the uterine wall, can also cause bleeding issues, particularly if they distort the shape of the uterine cavity. Intraligamentous myomas, while less common and having a unique position between the ligaments of the uterus, still may impact nearby structures and cause some effects on uterine function.

Ultimately, the less invasive positioning of subserosal myomas is the reason they are considered less likely to cause abnormal uterine bleeding.