Acute intestinal obstruction is most commonly seen after abdominal surgery or a history of abdominal infection, and in some cases due to intestinal tumors. Acute intestinal obstruction can lead to a series of clinical complications if it is not treated in a timely manner or if the condition evolves. The most common complication is the accumulation of fluid in the abdominal cavity, the loss of fluid to the abdominal cavity or the third hiatus, which will lead to internal environmental disorders, acid-base imbalance; hypokalemia, hyponatremia, hypochloremia and metabolic acidosis are common, and also prone to complicate the abdominal cavity infections, and in severe cases there will be a large amount of bloody exudate from the abdominal cavity, which will be reflected in the mobile turbid sound positive on percussion. Increased abdominal pressure can lead to abdominal septal syndrome, which can also lead to related organ insufficiency.