Stool sticking to the toilet may be caused by factors such as a lot of water or mucus in the stool. The presence of smelly and unshapely stools may be related to diet as well as intestinal inflammation, such as Crohn’s disease and colitis. If the patient consumes more high protein and high fat food in a short period of time, which exceeds the gastrointestinal tract’s ability of digestion and absorption, it will lead to the inability of complete digestion and absorption of the food, and a large amount of indole will be produced in the process of metabolism, which will make the stools smelly. At the same time, indigestion also tends to cause soft stools with more water and unshaped stools. Unshapely stools may also be related to Crohn’s disease and colitis. Due to inflammation stimulation, the intestinal peristalsis is accelerated, stools are easy to be unshaped. Moreover, the diseased intestine will secrete more mucus or even pus, which will be excreted with the stool, resulting in smelly and sticky stools. If you have foul-smelling stools with other discomforts, you should consult your doctor for further examination and clarification of the cause with the help of your doctor for targeted treatment or therapy.