The difference between wave knife and radiotherapy mainly lies in the localization accuracy and the number of treatments, etc. One of the major features of wave knife is that it can greatly improve the localization accuracy compared with general radiotherapy. 1. Positioning accuracy, one of the major features of the radio wave knife is that compared with general radiotherapy, it is able to greatly improve the positioning accuracy, and at the same time, it is able to protect the normal cells and tissues while enhancing the efficiency of killing cancer cells; while ordinary radiotherapy is difficult to accurately act on tumor tissues, and very often there are complications such as dermatitis and other problems. 2. The number of treatments, for tumors below 2cm, radio wave knife treatment can make the tumor eliminated once, if it is a bigger tumor, it can be improved significantly in 3~5 times; while common radiotherapy treatment needs at least about 5 times to have improvement. Patients are advised to go to the hospital in time, listen to the professional doctor’s advice and choose the suitable treatment for themselves.