Adult sleep drooling may be related to the following reasons: first, sleeping in the wrong position, sleeping in the wrong position can cause drooling, such as sleeping on the table, side lying position, etc.; second, oral diseases, if there is stomatitis pharyngitis, tongue inflammation, gingivitis and other diseases, as well as the stimulation caused by improper dentures can lead to drooling; third, brain overuse, when people use their brains too much, extreme fatigue and after taking certain drugs Will cause disorders of plant nerve function, thus causing drooling in bed; fourth, facial neuritis, such patients often also appear eyes closed, the corners of the mouth crooked; fifth, cerebrovascular disease, such as arteriosclerosis and stroke can also appear to sleep drooling phenomenon.