Sticky mouth may be related to physiological factors, pathological factors, such as drinking less water, oral lesions, gastric diseases. 1. Physiological factors: If you drink less water, it will lead to a decrease in saliva secretion inside the mouth, and then the mucosal surface can retain more food debris and soft dirt, resulting in a sticky mouth, accompanied by dry throat and other situations. 2. Pathological factors (1) Oral lesions: oral lesions, such as oral inflammation, gums or periodontal inflammation, may cause oral stimulation, resulting in abnormal secretion of saliva, the mouth will appear sticky feeling. (2) Gastric diseases: When suffering from certain gastric diseases such as gastritis and gastric ulcer, it may lead to acid reflux in the body, resulting in the symptoms of sticky mouth, which is usually accompanied by stomach pain, loss of appetite, nausea and other symptoms. Sticky mouth can also be caused by other reasons, if necessary, go to the hospital in time to check, and then according to the combination of the examination to carry out the appropriate treatment.