If your child is between three months and one year old, then it is completely normal for them to drool and blow bubbles!
In younger infants, excessive drooling can signal difficulties with swallowing [1]. In older children (after one year), they usually have enough control over their mouth muscles to keep their saliva from spilling out. If not, talk to your doctor to find the possible cause [2].
However, between 3-6 months (when the first teeth are coming in), children do have increased saliva production and haven't figured out how to manage it. This is normal and some experts believe that increased drooling helps reduce discomfort during teething [3].
If blowing bubbles is the only symptom and your child seems to feel well, is smiling, cooing, and eating adequately, then there's nothing to worry about.
