Is submucous myoma serious?

Submucous myoma is

a benign gynecological tumor, usually associated with elevated sex hormone levels. Small myoma usually does not cause obvious discomfort, so it is usually not serious. However, if the volume of submucous myoma continues to increase, it may cause uterine contractions to be affected, so that menstrual cycle is prolonged, and the amount of menstruation increases, which may cause anemia.