tongue disorder drooling AE QY, JX, HY http://en.volupedia.org/wiki/Drooling This is an AE which is the flow of saliva outside the mouth. Drooling can be caused by excess production of saliva, inability to retain saliva within the mouth (incontinence of saliva), or problems with swallowing (dysphagia or odynophagia). 10013642 流口水