The simplest test for intestinal obstruction is an upright abdominal X-ray, which can diagnose intestinal obstruction if dilated bowel loops and fluid levels are seen. Diagnosis can also be based on the patient's history and physical signs, such as nausea, vomiting, cessation of passing gas or stool, etc. Currently, abdominal CT can also diagnose intestinal obstruction, with the simplest method being the upright abdominal X-ray. Different types of intestinal obstruction require different treatments. For obstructions caused by tumors or volvulus, prompt surgical treatment is necessary. For general intestinal obstructions, such as those caused by adhesions or intestinal dysmotility, the preferred treatment includes fasting, hydration, anti-inflammatory medications, and other supportive measures. For elderly patients with obstipation-induced obstruction, enema treatment can be initiated first.