Drooling is saliva flowing outside the mouth.

Salivation

Drooling is generally caused by too much saliva production, problems keeping saliva within the mouth, or problems with swallowing.

Some people with drooling problems are at increased risk of breathing in saliva, food, or fluids into the lungs. However, this may cause harm if there is a problem with the body's normal reflex mechanisms (such as gagging and coughing).

Occasional drooling in infants and toddlers is normal and is unlikely to be a sign of either disease or problem. It may be associated with teething. Drooling in infants and young children may get worse with upper respiratory infections and nasal allergies.

Drooling associated with fever or trouble swallowing may be a sign of a more serious disease, including:

• Retropharyngeal abscess
• Peritonsillar abscess
• Tonsillitis
• Mononucleosis
• Strep throat

Sudden drooling may indicate poisoning (especially by pesticides) or a reaction to snake or insect venom.

Other things that can cause drooling:

• Certain medications
• Neurological problems

Care for drooling due to teething includes good oral hygiene. Popsicles or other cold objects (such as frozen bagels) may be helpful. Care must be taken to avoid choking when a child uses any of these objects.