Hello...doctor...my baby is 42 days old when does he start to laugh by recognising my face ?whether I should bother if he doesn't do the same within 56days

Question

Hello...doctor...my baby is 42 days old when does he start to laugh by  recognising my face ?whether I should bother if he doesn't do the same within 56days

Accepted Answer

when the child is smiling without any interaction that is not social smile.
a social smile is reciprocal, meaning your baby smiles in response to someone else's smile. the vision as well as the brain of the child is matureing in a proper way when the child is smiling on seeing a person. it says he's able to see short distances, make sense of an object (in this case a smiling face), and produce his own smile in return. 
a social smile also boosts bonding, since it's one of the first forms of communication between parent and child. 
if despite your encouraging grins you don't notice a social smilex by 4 months, bring it up with your pediatrician; rarely this can signal eye problems or a developmental delay.

Accepted Answer

good morning it will take some time before you can expect the child to be able to do that you have to be patient and wait for a couple of months it is only a matter of time nothing to worry about