Advanced cancer pain, performance are different, not everyone with advanced cancer pain will occur pain, more than 60% of advanced cancer patients will occur different degrees of pain is, but through standardized pain medication, most of the pain can be relieved, a small number of people are intractable pain, severe advanced cancer pain will be full of sweating, wasting away, and then can’t eat, sleep, lying down, which is a very big torture for patients. In addition to pain, the symptoms caused by the cancer itself are also very big. For example, cancers of the digestive system can cause intestinal obstruction, and cancers of the urinary system can cause urinary blockage, which can cause secondary pain. Primary cancers and bone metastases can cause pain, and secondary metastases to other parts of the body can also cause pain.