Drooling a lot of stomach up to the faint acidic taste may be chronic gastritis, reflux gastritis, gastric ulcer and other factors. 1. Chronic gastritis: the gastric mucosa is repeatedly damaged by various harmful substances over a long period of time, resulting in inflammation of the stomach and gastric dysfunction, which can cause increased salivation and a faint acidic taste in the stomach. 2. Reflux gastritis: Reflux gastritis is a disease in which bile and intestinal solutions enter the stomach through the pylorus, which has been loosened, leading to inflammation of the gastric mucosa. Reflux gastritis will cause patients to salivate a lot of stomach up to the faint acidic taste, the abdomen will have a burning sensation, after meals will also be aggravated. 3. Gastric ulcer: because of stomach acid, pepsin cleansing effect and mucosal defense ability is out of balance between the gastric acid and pepsin on the mucous membrane to produce digestion is greater than the mucous membrane defense ability after the gastric ulcer will occur. The symptoms are acid reflux, increased saliva, nausea, vomiting, and in severe cases, blood in the stool or blood in the vomit. If you have symptoms of drooling and acid reflux, it is recommended that you go to the hospital in time for treatment under the guidance of your doctor.