Usually, there are many reasons for the incessant secretion of saliva in the mouth, which can be classified as physiological or pathological. If patients have such symptoms, they need to identify the cause for targeted treatment. At the same time, patients should maintain a positive, optimistic mood to promote physical recovery. First, physiological 1, wearing dentures or orthodontics: wearing dentures or orthodontics at the beginning, the oral foreign body feeling is obvious, will occur saliva increase phenomenon, with the oral adaptation to dentures or orthodontics, foreign body feeling eliminated, can gradually reduce saliva secretion. If it cannot be relieved for a long time, you need to consider whether the dentures or orthodontic appliances are suitable, and find an orthodontist for adjustment as early as possible; 2, reflex stimulation: it may be stimulated by food to form a conditioned reflex, and the excitement of the center causes a large amount of saliva secretion, and the removal of the trigger can relieve the symptoms; 3, oral cleaning is not in place: after eating, oral cleaning is not timely or cleaning is not complete, and food residues are left on the teeth and teeth, which provides a Oral bacteria growth and reproduction to provide a place, the stimulation of these undesirable factors can cause increased saliva. Need to pay attention to oral hygiene, rinse mouth in time after meals, with the use of mouthwash, dental floss, etc. to thoroughly remove food residues; 4, incomplete development: If it is an infant, because the facial muscles are not yet developed, chewing ability is weak and shallow oral cavity, will not regulate the excess liquid in the mouth, will appear saliva phenomenon, with the growth and development of the perfect, can be self-recovery; 5, psychological factors: there may be because of tension and other Psychological factors cause excessive saliva secretion, at this time appropriate emotional regulation, relaxation, excessive saliva secretion symptoms can be alleviated; 6, other: physiological esophageal stenosis and other conditions can also lead to saliva can not be normal down the throat, increased saliva, if necessary, can be treated through surgery. Second, pathological 1, oral diseases: such as mouth sores, pharyngitis, gingivitis and other oral diseases. Bacterial infection of the oral cavity, mucous membrane redness, ulcers, pain caused by increased saliva. Need symptomatic treatment, under the guidance of the doctor to take antibiotics for anti-inflammatory treatment to reduce the stimulation of the oral mucosa, thereby improving the symptoms of excessive saliva secretion; 2, neurological diseases: cerebral palsy, epilepsy, Parkinson’s syndrome and other neuropsychiatric diseases, the nerve regulation that governs the oral and facial movements is impaired. It is necessary to go to the hospital to receive regular treatment, you can reasonably take nerve-nourishing drugs under the guidance of a doctor to improve the neural regulation disorder and reduce salivary secretion; 3, endocrine diseases: sudden goiter, diabetes mellitus and other endocrine diseases, you need to give allopathic treatment to control the primary disease and reduce salivary secretion; 4, other: due to surgery and drug effects, such as oral cavity, throat and other parts of the surgery caused by swallowing Nerve paralysis, atrophy of salivary glands in the elderly, excessive salivary secretion of pharmacogenic origin after taking drugs, etc. In this case, it is necessary to go to the hospital to improve the relevant examination, under the guidance of the doctor for treatment. In addition, malocclusion can also cause patients to have the symptom of non-stop saliva secretion in the mouth, which can be restored through orthodontics.