The purpose of gastrointestinal decompression in pancreatitis is the following: 1. After the patient develops pancreatitis, the gastrointestinal function is generally weakened or disappeared, and the patient may have abdominal distension in addition to abdominal pain, mainly due to the weakened intestinal motility or the disappearance of intestinal motility, and a large amount of fluid will accumulate in the gastrointestinal tract, and the patient’s abdominal distension is very obvious. The patient’s condition will be further aggravated by the accumulation of more digestive juices in the stomach and intestines, which will further stimulate the pancreatic secretion of pancreatic enzymes, and if the gastrointestinal decompression can reduce the digestive juices in the stomach or intestines and reduce the stimulation of digestive juices to the pancreas, the pancreas will be able to rest and recover. This will allow the pancreas to rest and recover more quickly from pancreatitis.