The main reason for salty mouth is due to local diseases of the mouth, a few people have digestive tract diseases, there will also be salty mouth, as follows: 1, poor oral hygiene, never cleaned the teeth of people, most of them suffer from gingivitis, periodontitis, these two inflammatory diseases can cause bleeding gums, redness, oral odor, and the release of bacteria, toxins, the accumulation of food residues, will cause the mouth There is a salty taste; if the mouth suffers from pericoronitis and periapical abscess of wisdom teeth, due to local inflammation of the teeth, pus, will also cause a salty taste in the mouth; for oral mucosa diseases, such as patients with mouth ulcers, the mucosa will have a large area of erosion, broken, will also cause salty taste in the mouth. 2, diseases of the digestive system, such as gastric ulcers, gallstones, bile sludge, etc., will also cause the accumulation of food and reflux, resulting in a salty taste in the mouth.