The causes of thick and foul-smelling stools are first considered to be dietary causes, such as eating too much meat, eating irritating foods, etc. Secondly, consider the cause of disease, such as constipation, ulcerative colitis, amoebic dysentery, etc.. 1. Dietary causes: such as eating too much meat, eating stimulating foods, and not exercising enough, can lead to abnormal digestion and absorption in the gastrointestinal tract. Especially meat food will form hydrogen sulfide in the intestines, resulting in a foul odor. 2. Disease causes: such as constipation, excessive fermentation of food in the intestinal tract to produce a foul odor, accompanied by sticky stools, defecation difficulties; such as ulcerative colitis, amoebic dysentery can affect the gastrointestinal tract peristalsis and digestive function, resulting in sticky stools, mucus pus and blood stools, jam-like stools and other cases, accompanied by foul, fishy odor. It is recommended to have a light diet, moderate exercise, and eat more green leafy vegetables and fruits. If the above symptoms persist, timely hospitalization is recommended.