The terminal symptoms of terminal cancer in the elderly are not the same symptoms, first of all, they are related to the site of the primary tumor in the elderly, and the symptoms produced at the time of terminal are not the same for tumors of different primary sites. At the same time, it is also related to the underlying diseases of the elderly, such as diabetes, heart disease, high blood pressure, etc. These mixed factors are not exactly the same as the end-of-life symptoms. For example, patients with advanced lung cancer, because of multiple lung metastases and even pleural effusion, may have shortness of breath and respiratory failure at the time of end-of-life. The late stage symptoms common to most tumors will be malnutrition, the so-called malignant disease. Then, for example, patients with advanced liver cancer may have pain in the liver area, and some patients may have a large amount of ascites and abdominal distension leading to the dysfunction of the digestive system. So the symptoms appearing in the advanced stage of different tumors are different.