Total removal of the colon will mainly cause changes in the stool habits of the patient, resulting in diarrhea, and in severe cases, the number of bowel movements can be more than ten times a day. The main function of the large intestine is to absorb water and minerals, and after complete removal of the large intestine, the water in the patient’s stool cannot be absorbed, resulting in the patient’s stool cannot be formed, and the digested and absorbed food residue will be directly expelled from the anus, resulting in watery stool and more frequent bowel movements. Most patients can control the number of bowel movements to less than five with astringents, but the stimulation of repeated watery stools can lead to localized dampness, itching and symptoms of perianal inflammation in the patient’s anus.