The child’s smelly poop can be caused by diet, indigestion, colitis and other diseases, as well as other diseases such as irritable bowel syndrome. 1. Diet: If the child has eaten too much protein-containing food, it will produce more foul-smelling substances, so it will lead to the child’s smelly poop. 2. Dyspepsia: dyspepsia is caused by a combination of factors, mainly gastrointestinal dyskinesia, visceral sensory hypersensitivity. Children will have symptoms such as postprandial fullness, early fullness, middle and upper abdominal pain, and constipation, diarrhea and other symptoms. 3. Colitis: There are many causes of colitis, including environmental, immune, genetic and so on. The main symptoms of children with colitis are abdominal pain, diarrhea, pus and blood stools, loss of appetite, etc., and there will also be symptoms such as urgency, constipation, urgency and heaviness (discomfort in the lower abdomen, wanting to defecate very much, and a feeling of incomplete defecation after defecation), and so on. 4. Other: irritable bowel syndrome, tuberculosis and other diseases can also lead to the emergence of the phenomenon of particularly smelly poop. There may be other reasons for your child’s smelly poop, so it is recommended that you go to the hospital in time, complete the examination to determine the cause of the problem, and then give targeted treatment under the guidance of the doctor. The child’s odor may also be caused by other reasons.