There is no conclusive relationship between stool notching and bowel cancer. Stool notching is not necessarily caused by bowel cancer, and symptoms of stool notching can be seen in cases where the intestinal mucosa is not smooth, as well as in cases where there are internal hemorrhoids or intestinal polyps. Bowel cancer patients may have blood in the stool, or the color of the stool is dark. As the disease progresses, some patients may also have symptoms such as abdominal mass and diarrhea. A small number of bowel cancer patients may have grooves in their stools because irregular neoplastic organisms have appeared in the bowel lumen of bowel cancer patients, which can cause the surface of the stool to change and appear as grooves as the stool passes through the bowel lumen. In addition, the grooves in the stool may be caused by unsmooth intestinal mucosa and internal hemorrhoids or intestinal polyps, etc. During intestinal peristalsis, due to the unsmooth intestinal mucosa, the phenomenon of grooves will occur when the bowel movement is not smooth and the bowel movement is hard and the force is not even, and the grooves will also occur when there are internal hemorrhoids or intestinal polyps. Stool notch is not necessarily intestinal cancer, if the phenomenon of stool notch for a long time, it is recommended to go to the hospital, after clarifying the cause of the disease, according to the doctor’s guidance for standardized treatment, so as to avoid delaying the condition.