No bowel movement for half a month is considered to be constipation caused by poor dietary habits, digestive system diseases, etc. Chronic intestinal obstruction should also be excluded. Lactulose and other drugs or surgery can be used. 1. Drug treatment: if there are acute and chronic gastroenteritis and other digestive diseases, gastrointestinal insufficiency of power phenomenon, resulting in constipation, you can follow the doctor’s instructions to take gastrointestinal power drugs such as Mosapride, Itopride, etc.; if necessary, you can also use lactulose and other laxatives to induce diarrhea. 2. Surgical treatment: if the patient is accompanied by abdominal distension and pain, vomiting, anal distension, etc., there is a possibility of chronic intestinal obstruction. Patients should go to the hospital for examination, under the advice of the doctor to choose to carry out open surgery or laparoscopic surgery, etc., and pay attention to the prevention of infection after surgery. It should be noted that, if the patient is occasional symptoms of half a month without defecation, may also be due to the recent eating too little. If the body does not adapt to the timely consultation, under the guidance of the doctor for targeted treatment, do not blindly use drugs to avoid delaying the condition.