1.Blood in stool: painless blood in stool is the main clinical manifestation of rectal polyps. The amount of bleeding in the stool of polyps is small, if the polyps are dislodged due to extrusion during fecal discharge, and the large size and low position of polyps, more bleeding may occur. Blood in stool is characterized by blood, and no dripping of blood occurs. 2.Prolapse: When the polyps are larger or more in number, they pull the intestinal mucosa due to gravity and gradually separate from the muscle layer and prolapse downward. The patient’s bowel movement pulling and intestinal peristaltic stimulation can make the mucosal layer around the base of the tissues relaxed, which can be complicated by rectal prolapse. 3, intestinal irritation symptoms: when intestinal peristalsis pulling polyps. Symptoms of intestinal irritation may appear, such as abdominal discomfort, diarrhea, pus and blood stool, urgency and heaviness, etc. 4, systemic symptoms: the number of polyps is large, the duration of the disease for a long time, can appear anemia, wasting and other systemic weakness. For those who excrete large amount of mucus, low potassium heart rhythm disorder or weakness of limbs and easy fatigue may occur.