Generally radiotherapy should be treated 30 times in order to be able to achieve better efficacy of radiotherapy and to ensure that the patient can get sufficient radiotherapy and the requirements of the radiotherapy program, radiotherapy can be selected as conventional treatment, radical treatment, palliative radiotherapy. 1. Radiotherapy is a kind of local treatment using high dose of radiation to kill tumors, and its dose is expressed in units of gy. Generally speaking, the curing dose for solid tumors can be achieved when the radiation curing dose of more than 60gy is reached, which is generally the conventional dose of 2gy once, basically 30 times. 2. Conventional treatment: 5 times a week, 2gy each time, usually once a day, the total number of radiotherapy is 25 times, which can alleviate the related discomfort symptoms and control the growth rate of the tumor. 3. Radical radiotherapy: It is mainly applied to tumors that are more sensitive to radiation, to achieve the effect of radical treatment through radiotherapy, the patient’s physical condition should be better, the total number of radiotherapy may reach about 30 times, and it is necessary to increase the quantity on the basis of 25 times, about 5 times more. 4. Palliative radiotherapy: palliative radiotherapy dose is generally around 3gy, usually need to do 10~20 times, the number of radiotherapy is generally not 30 times, such as palliative radiotherapy for bone metastases. Warm reminder: patients need to pay attention to sleep and rest, pay attention to diet after the end of radiotherapy, because after the end of radiotherapy adverse effects may still exist, try to eat a light diet, regular review.