Regarding whether a liver hemangioma requires surgery, size is only one factor that determines the necessity of surgery. Generally, hemangiomas larger than five centimeters have reached the criterion for surgical intervention. However, while the size of the hemangioma is one aspect, we must also consider its location and whether there are any symptoms of compression, as well as the potential for further pathological changes. Therefore, the necessity for surgery is influenced by size, but it is just one of the factors. Of course, the larger the hemangioma, the higher the possibility of requiring surgery.