Stinky stool is related to factors such as indigestion, excessive intake of protein foods, and intestinal tumors. First of all, the smell of the stool itself is not too great, and the ingested food will form hydrogen sulfide and indole after being decomposed, and these substances themselves will have a slight odor, so there will be the performance of smelly stool. Secondly, indigestion in the gastrointestinal tract can lead to increased odor in the intestines, and food cannot be excreted quickly after intake, and more gas is gathered in the intestines, causing foul-smelling stools. Then eat too much meat in the diet, these foods contain a lot of protein, which needs to be decomposed in the intestinal tract, so it will produce irritating fecal odor, causing foul-smelling stools. Finally, intestinal diseases can also cause such performance, constipation patients a large amount of food residue hoarded in the intestinal tract can not be discharged, repeated fermentation will easily cause foul-smelling stools. In addition to this, the obstruction of intestinal tumors can also cause this condition.