Is it normal to have food residue in your stool

If occasionally due to poor digestion of food diet shows that there is residue in the stool is a normal phenomenon, such as diet spinach, kelp or watermelon seeds caused by indigestion, excretion is a normal phenomenon. If there is food residue in the stool for a long time, it may be due to poor spleen and stomach function, indigestion, can eat spleen pills or spleen benefit intestinal pills treatment, while paying attention to diet, do not eat bad digestion of food. There is food residue in stool accompanied by mucus, purulent blood may be ulcerative colitis or intestinal tumor, chronic enteritis caused, can do stool routine and enteroscopy, diagnosed after the symptomatic treatment.