If the patient appears to suddenly swallow saliva involuntarily for more reasons, such as neurological disorders, fire and other conditions, the patient should promptly go to the hospital and carry out relevant treatment under the guidance of a doctor. 1, neurological disorders: the patient has abnormal neurological conditioned reflexes, resulting in the inability to control normal swallowing functions, mostly seen in patients with neurological diseases, such as those suffering from neurological disorder syndrome, Patients with cerebral infarction and cardiovascular-related diseases. Because these patients have basic diseases, the regulation and control of the peripheral nervous system and central nervous system is abnormal, unable to control the function of swallowing, resulting in sudden involuntary swallowing of saliva; 2, fire: patients appear sudden involuntary swallowing of saliva, possibly due to pharyngitis caused by fire, as well as spleen deficiency, kidney deficiency and other reasons, it is recommended that timely consultation for the corresponding conditioning The symptoms may be relieved by the presence of chronic pharyngitis, sinusitis, pharyngeal discomfort, oral infection, malocclusion of the front teeth, etc. Sudden involuntary salivation may also occur. Due to oral infection as well as pharyngeal discomfort, inflammatory factors can lead to stress reactions in some muscles and mucous membranes in their oropharynx, resulting in abnormalities in the nerves that regulate movement in the surrounding soft tissues, thus manifesting as sudden involuntary salivation. In addition, reflux esophagitis and reflux gastritis may also cause involuntary salivation when the throat is irritated. Patients with sudden involuntary salivation should not be too anxious, and should not blindly use medication, but should go to the hospital in a timely manner and undergo appropriate tests, such as routine blood, electroencephalogram, etc. Usually, they should also develop good habits, try not to stay up late, pay attention to keep warm, to avoid aggravating the discomfort of the pharynx by cold.