Uterine fibroids are a kind of common benign tumor in gynecology, there is no specific quantitative index for how big the largest fibroids are. Generally, with the improvement of medical level and people’s health consciousness, most of the fibroids will be detected at an early stage, and will be treated as well as controlled, and generally will not grow to be particularly large. If there is a chance of malignant changes in particularly large fibroids, relatively the growth rate of fibroids is not fast, if the fibroids occur in the submucosa of the uterus, there will be an increase in the amount of menstruation, prolonged menstruation, and in the long run, the symptoms of anemia will appear. If women have this situation, they will go to the hospital in time to find a doctor for ultrasound examination, can be timely detection of uterine fibroids, if it is submucosal fibroids, early surgical treatment, for the plasma membrane fibroids as well as intermural fibroids, if greater than five centimeters or more, no self-conscious discomfort symptoms, you can temporarily do not need to operate, you can give regular observation.