Hello dr.My son's birth weight was 2.200 n born 1 month before due date.now he is 4.6yr n is 12.500 weight n height 99 cm...is he under weight?n what should be the weight n height as his age regarding to his birth weight..

A. It should be 16 kg by the age of four years so little underweight your child is but you can take a diet from a nutritionist and that you can follow for a proper Ve gain and growth of your child so please get in touch with your doctor for that