my baby is 18 months old and jos height is 77 cm his height is not enough his height is not increasing in last 6 months what to do??

A. 2 1/2 feet your child which is a good enough height for an 18 month old child I don’t see any problem with that we have a doubt about it and then you say it’s not increasing for last six months you can take a check with your doctor on that