The increase of stool after pancreatic cancer surgery may be caused by indigestion, bacterial infection, insufficient secretion of pancreatic enzymes and so on. 1. Indigestion: after the surgery of pancreatic cancer patients, the structure of stomach changes, normal metabolism and physiological functions are affected, resulting in digestive dysfunction, which will lead to postprandial fullness, stomach discomfort, increased stools and other undesirable symptoms. 2. Bacterial infection: pancreatic cancer patients are often accompanied by different degrees of malnutrition and decreased immune function, and the lack of attention to diet and hygiene after the operation will lead to bacterial infection, which will cause gastrointestinal discomfort, diarrhea, increased bowel movement and other symptoms. 3. Insufficient secretion of pancreatic enzymes: after pancreatic cancer surgery, due to the removal of part of the pancreas, the exocrine function of the pancreas is damaged and the secretion of digestive enzymes is reduced, which leads to the weakening of intestinal digestion and absorption, and the patients will suffer from diarrhea, increased stools and other symptoms. It is recommended that postoperative pancreatic cancer patients avoid spicy and stimulating food, try to eat less and more meals, pay attention to light diet, and eat more protein-rich food to promote wound healing. If the postoperative pancreatic cancer patients feel uncomfortable after surgery, it is recommended to seek medical treatment in time and standardize the treatment under the guidance of professional doctors to avoid delaying the condition.