The bubbles in the stool are due to gastrointestinal diseases: 1, gastritis, gastric ulcer, etc., will lead to indigestion, imbalance in the gastrointestinal flora, increase in harmful bacteria, resulting in the food eaten in the gastrointestinal stay longer, a large number of harmful bacteria will decompose and ferment the food, resulting in a lot of bubbles, bubbles will be discharged with the stool, resulting in bubbles in the stool. 2, intestinal inflammation such as dysentery, enteritis, etc., will also lead to bubbles in the stool. The first is that the body’s lactase activity is very poor and cannot absorb the lactose in milk well, which will lead to bubbles in the stool. 5, lactose intolerance, if the body’s lactase activity is very poor, can not absorb the lactose in milk well, which will lead to bubbles in the stool. The lactose will lead to an increase in stool and also the symptoms of bubbles in the stool.