My baby 22 months old, it's a baby girl, her wait is 10 kg, who to increase her wait,

A. U. Should take help from a nutrition is because your child is underweight probably buy somewhere around two cages as of now it is not much but still I think your child is just lacking in some supplements into the body which is why the way the growth is not proper as it should have been so just take a help from a nutritionist for a proper diet then