Often swallowing saliva, if there is no other discomfort, in itself no harm; but if there is a dry throat, oral mucous membrane rupture and other manifestations, should consider the possibility of disease, need to be actively examined and treated. Under normal circumstances, saliva can have lubrication, clean the oral cavity and help digestion and other functions. However, if you frequently swallow saliva, you should be alert to other causes, such as dietary reasons, oral diseases, chronic pharyngitis and other diseases. First of all, pay attention to whether there is a dry throat or other discomfort in the pharynx, etc. If there is discomfort in the pharynx, you may be suffering from chronic pharyngitis. Pay attention to drink more water, use honeysuckle, chrysanthemum, etc. under the guidance of the doctor to drink water, and oral watermelon cream tablets, etc., to relieve the discomfort of the throat. May also suffer from oral inflammation, oral ulcers, etc., stimulate the oral cavity and secretion of excessive saliva. It is recommended to actively use medication. In addition, we should also be alert to diabetes and other diseases, resulting in dry throat, dry mouth, the emergence of frequent gagging, found that you need to actively seek medical attention to control the development of the disease.