There are five symptoms of polyps inside the intestine, as follows: 1. Some of them may have constipation and diarrhea without any reason, when these two conditions appear alternately, we must pay attention to them; 3, abnormal stool shape, normal stool should be cylindrical, patients with polyps inside the intestine will have thin stool due to polyp extrusion; 4, abdominal pain, large polyps can cause intestinal overlap and even intestinal obstruction, which will lead to abdominal pain; 5, prolapse, large polyps will pull the intestinal mucosa so that The polyp will pull the intestinal mucosa to separate from the muscle layer and prolapse downward, which can be seriously complicated by rectal prolapse.