1. Oral diseases
Pharyngitis, maxillofacial inflammation, gingivitis can stimulate the secretion of salivary glands, leading to drooling.
In addition, crooked, loose teeth, and discomfort when wearing dentures can also cause drooling while sleeping. After straightening your teeth, your drooling will improve.
2. Facial paralysis
Facial paralysis is a condition of paralysis of the muscles on one side of the face. Due to the asymmetrical strength of the muscles on both sides, it is difficult to hold saliva on the paralyzed side and it is easy to drool whether you are sleeping or not.
If accompanied by symptoms such as crooked corners of the mouth, you need to see a doctor immediately.
