Stool odor may be caused by improper diet, or due to indigestion, amoebic enteropathy and other diseases. 1. Improper diet: If you consume too much greasy, high-protein and high-fat food, it may lead to the production of more ammonia during the decomposition of food, and the feces will have a heavier odor. 2. Dyspepsia: dyspepsia may be caused by gastrointestinal dyskinesia, heredity, infection, anxiety, Helicobacter pylori infection, etc. As the patient’s gastrointestinal function is poor, it may lead to constipation, and the feces will continue to be fermented by the intestinal flora, and there will be a situation that the feces smells bad. 3. Amebic enteropathy: Amebic enteropathy is mainly caused by amebic infection in the dissolved tissue. The patient’s stool is presented as jam-like mucus, pus and blood, accompanied by a fishy odor, some patients may also appear abdominal discomfort, diarrhea and other symptoms. There are many reasons for the odor of the stool, and it is recommended that patients identify the cause of the disease in time.