Before pancreatic cancer patients die, they mainly show the following symptoms: 1. pain, patients can have pain in the upper abdomen or the whole abdomen, sometimes the tumor will invade the retroperitoneal plexus, patients will have unbearable pain. 2. mass, a hard mass can be touched in the upper abdomen, usually with poor activity and pressure pain. 3. some patients will have jaundice, manifested as yellow skin, yellow eyes, deepening urine, white stool, etc. 4. Some patients may have symptoms such as yellow skin, yellow eyes, deepened urine, white stools, etc., which are often caused by tumor invasion of bile duct or compression of bile duct. 4. Some patients may have elevated body temperature or even chills and high fever. 5. Patients may have symptoms such as progressive wasting and anemia. 6.