Stool is mainly the body’s excretion of food residue that is not beneficial to the body, the digestive tract shedding tissue and the remaining products of the digestive process. The nature of stool varies in children due to their age, diet, bowel habits, the number of bowel movements per day, and the way they are fed. Breastfed children, the normal stool appearance of yellow or golden yellow, uniform consistency such as paste, a sweet and sour smell, but not smelly, no obvious mucus, occasionally granular milk flap or slightly green, 3-5 times a day, some children can also be up to 6-7 times a day or more, but each time the amount is not much, the nature of the same, weight gain as usual, good nutritional status, no symptoms of dehydration, this is not a pathology, do not need No treatment is needed. If a child has 1-2 stools per day and suddenly becomes more than 5-6 times, and is more watery or contains undigested food residue, he/she should be seen by a doctor. In artificially fed children, the stool is pale yellow or earthy yellow, hard, dry and formed, often not staining the diaper, and if there is more sugar in the milk, it becomes soft and has a slightly rotten-like sour smell, and the amount of stool is also higher each time. Normal bowel movements 1-2 times a day or once every 2-3 days, such as what people call “saving belly”. As long as the child does not rise belly, not dry, no nausea and vomiting, good mental state, is a few more days inconvenience also belongs to normal. As children grow older, a variety of food increases, the stool gradually with adults the same. Children’s abnormal stools are: 1, the number of stools increased, dilute watery or egg soup-like, or mucus and foam, with fishy smell, which suggests that the child diarrhea. 2, the number of stools decreased, crying during defecation, laborious, dry stool, hard, or even blood on the surface, which suggests the occurrence of constipation. 3, the stool is white clay-like, suggesting that the child has biliary obstruction disease, such as, congenital biliary obstruction, etc. 4, the stool is black tar-like, suggesting that the child may have upper gastrointestinal bleeding, but children taking iron or eating iron-rich food can also appear black stool, such as eating blood tofu. 5, red stool, suggesting lower gastrointestinal bleeding, common blood in the stool, mostly caused by anal fissures, hemorrhoids or rectal polyps. 6, the stool is green thin watery, but the general state of the child is good, suggesting hunger diarrhea, need to increase the amount of milk. If the general state is poor, accompanied by fever, vomiting, etc., suggesting inflammation of the intestinal tract. 7, the stool is jam-like, pay attention to the occurrence of intussusception. 8, stools for sorghum rice water-like stool, pay attention to the occurrence of necrotizing small intestinal infections. 9, the stool is egg-white-like mucus stool, or with pus and blood stool, suggesting the possibility of dysentery. In short, in each of the above cases, parents should keep a good stool (required within an hour of the stool) to the hospital, so as not to go to the hospital after the doctor let the test stool, children and inconvenience, parents dry anxious can not do, and thus delay the disease.