Uterine fibroids are a common benign tumor in gynecology, and there is no specific quantitative indicator of how large they are. Generally, with the improvement of medical care and people’s health awareness, most fibroids are detected early, treated and controlled, and generally do not grow particularly large. If particularly large fibroids have a chance of malignant transformation, the relative growth rate of fibroids is not fast. If the fibroids occur in the submucosa of the uterus, there will be an increase in menstrual flow, prolonged periods, and over time, symptoms of anemia. If a woman has such a condition, she will go to the hospital for ultrasound examination in time to find out the fibroids in time. If it is a submucosal fibroid, early surgery should be performed. For subplasmal fibroids and interstitial fibroids, if they are larger than five centimeters and have no conscious discomfort, surgery can be temporarily dispensed with and observation can be given regularly.