The pain of intestinal obstruction should belong to grade 8 or above, and the pain will be very intense and paroxysmal colic. In clinical practice, pain is classified into 1-10 levels from mild to severe, and its corresponding pain score is 1-10, where 1-3 is mild pain, 4-7 is moderate pain, and 8-10 is severe pain, which is judged by the degree of pain’s impact on the patient’s sleep. A pain score of 1-3 will not affect the patient’s sleep, while a score of 4-7 will affect the patient’s sleep, but the patient can still sleep, while a score of 8-10 will be so severe that the patient will be unable to sleep because of the pain and will need pain medication to fall asleep.