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A 22-year-old female asked:

my 3.5 month old baby smiles and babbles the whole time but he does not laugh yet. should i be worried? when do babies generally start to laugh?

1 doctor answer1 doctor weighed in
Dr. Christine Hom
Pediatrics 30 years experience
Laughing and babblin: Your son is doing just fine! Babbling responsively is the beginnings of verbal communication and probably more important than laughing. The deliciousness that is a baby's laugh is not far behind. It can be hard to wait.

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Last updated Jul 13, 2016

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