Tuba is a folk expression that usually refers to stool. Wanting to poop after eating may be caused by diseases such as irritable bowel syndrome, acute gastroenteritis, and chronic colitis. 1. Irritable bowel syndrome: the basic etiology of this disease includes visceral hypersensitivity, abnormal gastrointestinal dynamics, neurological abnormalities, intestinal infections, and intestinal microecological disorders. If the patient is intolerant to food, he or she is prone to have bowel movements after eating, as well as abdominal pain, reflux and other symptoms. 2. Acute gastroenteritis: this disease may be caused by viral, bacterial or parasitic infections, and may also be caused by eating irritating foods. Secondly, this disease can be triggered by unclean diet, immunocompromise and other factors, and then there will be the performance of wanting to have a bowel movement after eating, the patient will also have abdominal pain, nausea, vomiting and other symptoms. 3. Chronic colitis: the occurrence of this disease may be related to heredity, food allergies, long-term mental and psychological tension, intestinal immune dysfunction and other reasons. If patients frequently eat high-fat, high-protein food, it is easy to induce chronic colitis, the symptom of wanting to have a bowel movement after eating. There are many reasons why patients want to have a bowel movement after eating, so they need to go to the hospital in time to have a relevant examination to find out the specific reasons.