The five major symptoms of early pancreatic cancer patients include abdominal pain, jaundice, abdominal distension, diarrhea, fatigue, and more, among which the occurrence of abdominal pain is higher. Many patients with early pancreatic cancer experience persistent and hidden abdominal pain without other clinical symptoms, which often leads to missed opportunities for early diagnosis; Secondly, jaundice is also a main manifestation of early pancreatic cancer, particularly in the head of the pancreas, mainly due to the tumor causing obstructive jaundice; Thirdly, abdominal distension, which is generally a mild distension and often does not significantly attract clinical attention; Fourthly, patients often feel a general fatigue, which is difficult to alleviate with ordinary treatment methods; Lastly, diarrhea, which is often due to abnormal secretion of digestive fluids caused by the pathology, leading to diarrhea.