Rectal cancer is usually in advanced stage before death, and often has symptoms such as severe pain, exhaustion and emaciation. 1. Severe pain, as the tumor in the primary lesion of rectal cancer in advanced stage is too big, constantly squeezing the surrounding tissues and invading nerves, patients will experience abdominal pain; meanwhile, as the cancer cells also have bone metastasis and liver metastasis, patients may experience pain in bones and liver area. 2. Failure, the patient’s body is in a highly weakened state, coupled with the invasion of various organs by cancer cells, the function of which starts to fail, and at that time, there will be respiratory difficulties, accelerated heartbeat, edema and so on. 3. Wasting, rectal cancer is a consumptive disease, which also affects normal digestion, and when the body is not supplemented with nutrients, there will be serious wasting and lack of strength, etc. It is recommended that the patient should consult a doctor in time. It is suggested that patients should seek medical treatment in time and carry out symptomatic supportive treatment under doctor’s guidance in order to reduce pain.