Causes of burning sensation in the gastrointestinal tract mainly include food stimulation, peptic ulcer and acute gastroenteritis. 1. Food stimulation: if you eat a lot of spicy hot, spicy hot pot for a long time, so that a lot of food containing capsaicin into the gastrointestinal tract, capsaicin stimulation of the gastrointestinal tract mucosa, can cause the gastrointestinal tract with burning sensation. 2. Peptic ulcer: If there is an ulcer surface on the mucous membrane of the digestive tract, after eating a meal, the food that enters the gastrointestinal tract will stimulate the secretion of gastric acid, and the gastric acid stimulates the ulcer surface on the mucous membrane of the digestive tract, which will lead to a burning sensation in the gastrointestinal tract. 3. Acute gastroenteritis: when acute gastroenteritis attack, gastrointestinal tract dysfunction, can cause excessive secretion of gastric acid, a large amount of gastric acid stimulation of the gastrointestinal tract will cause gastrointestinal tract with burning sensation. If the gastrointestinal tract has a burning sensation, it is necessary to go to the regular hospital in time to find out the cause of the disease, and under the guidance of a professional doctor to choose a suitable method of treatment.