The general cause of drooling is the excessive production of saliva. The inability of the mouth to retain the produced saliva naturally leads to its overflow. Irregularities in the mode of swallowing also lead to drooling.
Isolated instances of drooling are common in kids. Normal drooling does not relate to any disease or complications. Drooling is generally associated with teething. However, children with upper respiratory tract infections and nasal allergies are found to suffer from increased drooling.
Drooling that is associated with fever or trouble in swallowing food is considered as a sign of a more serious disease. Drooling is thus a symptom of ailments such as tonsillitis, mononucleosis and strep throat. Drooling also occurs as a sudden bodily reaction to snake or insect venom.
Certain medications are also found to cause drooling. Some are found to suffer from drooling as part of certain neurological problems. However, a kid with severe drooling should be taken to the doctor.
Drooling is often considered by medical experts as a “soft” neurological sign. He needs to be taken to a neurological expert, if your kid continues to drool even after crossing his third year. However, a child who drools as a consequence of some neurological damage is likely to show certain other signs such as clumsy gait, fine motor delays, or language delays.
Mostly, children who drool constantly are found to keep their mouths open most of their time. They rest with open mouths mostly due to some nasal congestion that is mainly caused by cold or respiratory allergies. Kids with a low facial tone are also found to drool severely.
Children with poor muscle tone in their tongues find it difficult to keep their tongue up against the roof of their mouth as they keep their mouth shut. Such a lifted resting position requires increased muscle strength when compared to keeping the tongue close to the floor of the mouth, as is common with drooling kids.