Hello...My son' s right ankle is tilted inwards when he stands. he is 17 mnth old.. what is the cause

A. difficult to tell whether it is normal or not so meet orthopaedic doctor who will tell you whether any intervention is required or not . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .