my baby girl was 45 days old .she has 4kg and 600 gm .This weight is normal or not .her birth weight is 3kg 40gm

A. Hello maam Your child has gained one KG in a month so that is good enough because a minimum of 500 g is considered good for one month gain see your child is gaining about one KG approximately which is definitely a good weight gain so need not worry about it at all