The esd procedure, also known as endoscopic submucosal dissection, usually allows patients to eat normally 2 to 3 days after the procedure. Endoscopic submucosal dissection is mainly used to remove gastroscopic or enteroscopic polyps, the vast majority of which are clinically benign. Usually, when removing polyps, only the mucosal layer and submucosal layer will be operated, and usually there will be no damage to the muscular layer of the colon wall. Normally, damage to the mucosal and submucosal layers caused by surgery can be recovered in 24 to 48 hours. Therefore, under normal circumstances, 2 to 3 days after the operation, it can basically heal completely without delaying the normal diet. After the surgery, patients should pay attention to a light diet, do not eat spicy, cold, greasy food. Also pay attention to rest, not strenuous exercise. If there is any discomfort, go to the hospital for examination and consultation.