If we only talk about whether radiotherapy and chemotherapy can be done together, it is possible to do them together. We can understand that radiotherapy and chemotherapy are both means of treating tumors, and both have certain side effects, so adding the two together is usually said to be more powerful, more intense and more effective. If a patient in stage 3 refuses surgery, radiotherapy and chemotherapy will be done at the same time, which is the preferred treatment option according to the guidelines. But the patient is already very, very late, then there is no need to make him pay so much to give him radiotherapy and chemotherapy at the same time. It is possible to do both, but whether it is necessary to do both depends on the patient’s specific physical condition and his disease, whether to give radical treatment or palliative treatment.