The physical status scoring standard for elderly oncology patients was proposed by the Karnofsky (Karnofsky Score, KPS) of the Eastern Oncology Collaborative Group in the United States, and based on whether the patient can move normally, his or her condition, and the degree of self-care, KPS regards the patient’s health status as a total score of 100, with 10 points in a scale. Health status self-rating scale (KPS scale): 100: normal body, no discomfort. 90: Able to perform normal activities with slight discomfort. 80: Barely able to perform normal activities, with some discomfort. 70: Can take care of himself/herself, but cannot maintain a normal life or work. 60: Sometimes needs support, but can take care of himself/herself most of the time. 50: Often needs care from someone. 40: Cannot take care of himself/herself and needs care. 30: Seriously unable to take care of themselves. 20: Severely ill, requiring active support in hospital 10: Critically ill, close to death. 0: Dead. The higher the score, the better the health status, the more tolerant the side effects of the treatment, and therefore the more likely it is that the treatment will be complete. The lower the score, the worse the health condition is, and one should carefully choose treatments that may bring side effects to the body. Clinically, radiotherapy is generally not recommended for elderly patients with advanced cancer if their KPS score is below 60.