The feasibility of doing 8 less radiotherapy sessions should be considered according to the patient’s tolerance, surgical condition, radiation sensitivity and other comprehensive factors. 1. Patient’s tolerance: the patient’s tolerance to radiotherapy is directly related to the dose of radiotherapy, if the patient cannot tolerate 28 times of radiotherapy, 8 times less can be done according to his/her own conditions. 2. Surgical situation: if the tumor of the patient is basically mostly or completely removed after surgery, and a lower dose of radiotherapy can be performed, 28 times of radiotherapy may be less than 8 times to achieve the purpose. However, if the patient’s tumor is not cleanly resected after surgery and more residuals are left, a larger dose of irradiation is needed. In this case, it is generally infeasible to do 8 times less radiotherapy, and the effect of radiotherapy may not be achieved. 3. The degree of radiation sensitivity: some tumor types are relatively sensitive to radiation, so even if the 28 radiotherapy sessions are less than 8 sessions, the tumor can shrink and achieve the radiotherapy effect. However, some tumor types are not sensitive to radiation, so if 8 times less radiotherapy can not achieve the effect, patients can choose according to the tumor types. The feasibility of doing 8 fewer radiotherapy sessions out of 28 depends on the specific situation, and it is recommended to consult the doctor for specific advice.