A small amount of exudate around the pancreas may be acute pancreatitis, which is more serious. Acute pancreatitis is an inflammatory disease caused by the abnormal activation of pancreatic digestive enzymes that have a digestive effect on the pancreas itself and its surrounding organs. It is mostly caused by bile reflux, duodenal fluid reflux, excessive alcohol consumption, hyperlipidemia, overeating, trauma or surgery, and infection. CT of acute pancreatitis shows diffuse enlargement of the pancreas, uneven density, blurred borders, peripancreatic swelling and peripancreatic exudation. When there is a small amount of exudate around the pancreas, it may be mild acute pancreatitis. Fasting and gastrointestinal decompression are used to reduce pancreatic secretion and allow the pancreas to rest. At the same time, hemodynamics should be maintained with aggressive fluid replacement and rapid volume expansion. Mild acute pancreatitis can be treated with drugs such as growth inhibitors and proton pump inhibitors. Acute pancreatitis progresses more rapidly and should be taken seriously, and it is recommended to go to the hospital for professional treatment under the guidance of a doctor to avoid delaying the condition.