Drooling (Sialorrhoea)  

This is defined as the overflow of saliva from the mouth. Young children frequently experience drooling of saliva and indeed it is considered normal up to 18-24 months of age. Drooling after 4 years is considered pathological. In adults drooling may be related to neurological conditions which result in poor control of the oral muscles.

Diagnostics

Blood tests, Fibreoptic endoscopy, Ultrasound