Pancreatic cancer is a malignant tumor of the digestive system and does not have a high clinical incidence rate. Early symptoms of pancreatic cancer are not typical; some patients experience abdominal pain, primarily a persistent episodic pain that may radiate to the shoulder and back. Additionally, early-stage pancreatic head cancer patients may exhibit jaundice, often caused by obstructive jaundice due to tumor compression. Besides this, patients may also have clay-colored stools or urine the color of strong tea. Beyond these symptoms, early-stage patients exhibit no other signs. When typical clinical manifestations occur, they are generally indicative of mid to late-stage pancreatic cancer. Precursors to pancreatic cancer include persistent hidden pain in the shoulder or a stiff pain in the back. This continuous pain, often caused by the invasion of the abdominal nervous plexus, results in radiating pain.