my baby girl birth weight was 4 kg and now she is 3 months 10 days but her weight is 5.9 kg is she normal or underweight..

A. It’s a healthy weight in your child has gained 2 kg which is a healthy weight gain for the child looking at the current age of your child has a minimum minimum gain should be about half a KG in a month so if you look at that the child is gaining very very well as of now