Intestinal obstruction can usually be removed from the gastric tube under the guidance of the doctor after the patient has defecated with gas or the medication injected from the gastric tube has been able to be discharged from the anus normally. Intestinal obstruction refers to the obstruction of the passage of intestinal contents caused by any reason, and may have symptoms such as abdominal pain, abdominal distension, vomiting, etc. It is usually treated by surgery. Generally, the surgery for intestinal obstruction needs to insert a gastric tube to carry out gastrointestinal decompression, to lead gastric juice out of the body, to reduce the tension inside the gastrointestinal tract, and to help intestinal tube to recover quickly, especially in the case of high level of obstruction, and the vomiting will be especially obvious. Prohibit smoking and alcohol, pay attention to diet, avoid overeating, diet to light and easy to digest, avoid strenuous exercise after meals, eat more fresh fruits and vegetables, pay attention to rest.