The clinical manifestations of pancreatic cancer mainly depend on the location of the cancer, the stage of the disease, whether there is metastasis, and the involvement of adjacent organs. The clinical characteristics include a short disease course, rapid progression, and swift deterioration. The most common symptom is upper abdominal distension and discomfort, pain, though not all patients experience tenderness; if tenderness is present, it aligns with the area of pain felt. Pain is a primary symptom of pancreatic cancer, present whether the cancer is located in the head or the body/tail of the pancreas. Jaundice is a main symptom of cancer in the head of the pancreas, and patients often exhibit more severe gastrointestinal symptoms, most commonly loss of appetite, followed by nausea and vomiting. There might also be diarrhea or constipation, even melena. Diarrhea is often steatorrhea. In the early stages of pancreatic cancer, common symptoms include weight loss and fatigue.