Foul-smelling bowel movements may be related to irritable bowel syndrome, enteritis, intestinal tumors, intestinal flora imbalance and other intestinal diseases. 1. Irritable bowel syndrome: it can affect the intestinal function, leading to diarrhea, constipation and other diseases, which in turn leads to foul-smelling bowel movements. 2. Enteritis: especially enteritis caused by bacterial infection, which can lead to some inflammatory secretions in the affected area, which in turn leads to the phenomenon of thin and foul-smelling stools. 3. Intestinal tumors: tumors will secrete some purulent secretions, which can also cause malodor after mixing with feces. 4. Imbalance of intestinal flora: some bacteria proliferate abnormally and ferment with feces in the intestinal tract, which can also trigger the symptoms of foul-smelling stool. The symptoms of foul-smelling bowel movements may also be related to other intestinal diseases, and it is recommended to consult a doctor as soon as possible to confirm the diagnosis of the condition, and then follow the doctor’s instructions for treatment.