Persistent abdominal pain and bloating are generally not considered intestinal cancer, and many diseases can cause this condition. In the early stage of bowel cancer, there is no symptom or symptom is not obvious, only indigestion and occult blood in stool, and with the growth of tumor, change of stool habit, abdominal pain, blood in stool and other manifestations may appear. There are many causes of abdominal pain and bloating, the more common ones are digestive system diseases and urinary system diseases, such as intestinal obstruction and constipation, which can lead to abdominal pain and bloating, and require fasting water, gastrointestinal decompression and, if necessary, colonoscopy to find the cause of intestinal obstruction. Urinary retention, ureteral stones and appendicitis can also cause abdominal pain and abdominal distension, which can be treated with urinary drainage as well as surgery. In addition, this symptom does not exclude the possibility of gynecological diseases, such as ectopic pregnancy and ruptured corpus luteum, which can cause acute abdominal pain and require emergency treatment. Some functional diseases, such as gastritis and gastrointestinal disorders, may also cause this phenomenon. Patients should adjust their daily routine and diet structure, avoid overeating, and eat easily digestible food. If intestinal cancer is suspected, abdominal plain film examination, tumor marker examination and gastrointestinal endoscopy are feasible to exclude tumor-occupying diseases.