The presence of fecal-like vomit is a clinical symptom of acute pancreatitis. Acute pancreatitis (acutepancreatitis, AP) is a relatively common type of acute abdomen, and its incidence accounts for the third to fifth highest incidence of acute abdomen. More than 80% of these patients have a mild condition, namely acute edematous pancreatitis, which can be cured non-operatively and is basically an internal disease. What is the etiology of the appearance of fecal-like vomitus? 1, vascular factors: atherosclerosis and periarteritis nodosa, both of which can lead to narrowing of the arterial lumen and inadequate blood supply to the pancreas. 2, late pregnancy: women are prone to complications of gallstones, hyperlipidemia, and an enlarged uterus can compress the pancreas, all of which can lead to impaired drainage of pancreatic juice and high pressure in the pancreatic duct. 3, penetrating ulcers: duodenal Crohn’s disease and the pancreas, can cause pancreatic destruction of the pancreatic alveoli release and activation of pancreatic enzymes cause pancreatitis. 4, mental, genetic, allergic and allergic reactions, diabetic coma and uremia are also factors that cause acute pancreatitis. 5, pancreatic duct obstruction, pancreatic duct stones, stenosis, tumors, etc. can cause pancreatic fluid secretion, increased pressure in the pancreatic duct, rupture of small branches of the pancreatic duct and pancreatic alveoli, leakage of pancreatic fluid and digestive enzymes into the interstitium, causing acute pancreatitis. In a few cases of pancreatic separation, the main pancreatic duct and the secondary pancreatic duct are shunted and poorly drained, which may also be related to acute pancreatitis. 6, idiopathic pancreatitis, the cause of which is unknown about 8% to 25%.