Salivation; Excessive saliva; Too much saliva; Sialorrhea
Drooling is generally caused by:
Problems keeping saliva in the mouth
Problems with swallowing
Too much saliva production
Some people with drooling problems are at increased risk of breathing saliva, food, or fluids into the lungs. This may cause harm if there is a problem with the body's normal reflexes (such as gagging and coughing).
Some drooling in infants and toddlers is normal. It may occur with teething. Drooling in infants and young children may get worse with colds and allergies.
Drooling may happen if your body makes too much saliva. Infections can cause this, including:
Vanderhoff BT, Carroll W. Neurology. In: Rakel RE. Textbook of Family Medicine. 7th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 54.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.