Sleeping always drooling yellow and especially stinky, may be suffering from oral diseases, such as dental caries, etc., and may be suffering from digestive diseases, such as dyspepsia, etc., need to analyze the specific problems. Suffer from oral diseases, such as dental caries, due to dental caries, or poor oral hygiene, there will be some bacterial reproduction, fermentation, so there will be sleeping yellow drool and especially smelly, often accompanied by dental caries, hot and cold stimulation of pain and other manifestations. Suffering from digestive system diseases, such as indigestion, etc., the food in the stomach can not be digested and absorbed in time when sleeping at night, fermentation will occur, and there may also be food or gastric reflux and other situations, causing yellow drooling in the sleep with a special odor, often accompanied by nausea, gastric distension and other manifestations. As the causes of yellow drool and special odor are more, if you can’t distinguish them by yourself, it is recommended to go to the regular hospital. It is recommended to go to the regular hospital in time, with the help of the doctor to clarify the diagnosis.