The pancreas is an important organ in the abdominal cavity of the human body with exocrine function and endocrine function. The head of the pancreas is only one of the parts of the pancreas. The pancreas is an organ, and the head of the pancreas is only one of the parts of the organ. The pancreas also includes the body and tail of the pancreas. The pancreas is located in the upper left part of the abdomen, which is deeper and covered with intestinal tissues. When a patient has acute pancreatitis, it will manifest as severe left upper abdominal pain or epigastric pain with persistent episodes, which may be accompanied by abdominal distension, nausea, vomiting and fever. When patients develop pancreatic cancer, it mainly occurs in the head of the pancreas, which accounts for about 60%, and in the tail of the body of the pancreas, which accounts for about 20%.