Once you eat, you have to go to the toilet, which may be caused by dietary problems, colitis, irritable bowel syndrome and other diseases, and it is recommended that the patient go to the hospital for examination and diagnosis of the cause of the disease, and then symptomatic treatment. 1. Dietary problems: If the patient eats too much greasy food, it may lead to excessive gastrointestinal fats and oils, thus causing the feeling of having to go to the toilet, in this case, no special treatment is usually needed. 2. Colitis: after eating, the food will stimulate the gastric mucosa, thus accelerating the peristalsis of the stomach and intestines, so that the patient will have the symptom of having to go to the toilet as soon as he eats, and the patient may also experience incontinence of the bowels, loss of appetite and other symptoms. 3. Irritable bowel syndrome: Irritable bowel syndrome manifests itself as a result of micro-ecological imbalance in the intestinal tract, so after food stimulation, leading to increased micro-ecological imbalance in the intestinal tract, will want to go to the toilet. Patients may manifest symptoms such as abdominal pain, diarrhea or constipation. In daily life, patients should pay more attention to the combination of diet, eat more food with high dietary fiber, pay more attention to the warmth of the abdomen to avoid catching cold.