Pancreatic cancer belongs to a very common malignant tumor of the digestive system. It is highly malignant, known as the king of cancers, and has poor treatment effect. Except for very early stage pancreatic cancer, which can be treated surgically, there is no chance of surgical treatment for other middle and late stage pancreatic cancer, and generally there is no too good treatment. Many of the causes of death from pancreatic cancer are due to the failure of vital organs, and the fact that the patient reaches the late stage and cannot eat at all, leading to malnutrition and some other complications, such as respiratory and circulatory failure and thrombosis, which may lead to the death of the patient. At the end of the day, the main treatment is to relieve pain and prolong survival. Patients with advanced pancreatic cancer will experience heavier pain and need to apply strong painkillers to try to relieve the pain.