Unsmooth stool is normal if it is caused by eating too much rough food. If it is caused by intestinal inflammation or intestinal tumor, then it is a pathological change and abnormal. 1. Normal phenomenon: If the food you eat is rough and contains more indigestible ingredients, then the stool may become rough and not smooth. In this case, it is only necessary to change the dietary habits, which is a normal phenomenon. 2. Pathological manifestations (1) Intestinal inflammation: including inflammatory bowel disease, acute enteritis, etc., which will lead to diarrhea, not shaped, and thus manifested as non-smooth stools. (2) Intestinal tumors: especially anorectal cancer, the cancer will press the stool bar, resulting in flattening and thinning of the stool table bar, becoming unsmooth, with pus and blood on the surface. If the stool is not smooth suddenly under the condition of normal diet, it is recommended to seek medical treatment in time and carry out standardized treatment after clear diagnosis under the guidance of professional physicians.