#asktheexperts my son joints get crackling sound sometime while I pick him up and now days he is complaining of pain in knee at night only all day he is active

A. See bones are usually developing in this age which is why this could be happening that your child has that kind of sound but if your child is complaining of knee pain and such a small age that may not sound very good could be due to deficiency of calcium or maybe a child got hurt you need to see your doctor for this issue