welcome to HealthcareMagic
The weight of a person is related to height and not age so if your son has a height of 4'8" (4 feet * inches) or more then his weight is fine and if he is shorter also no reason to worry as children may be fat in early years and then lose weight.Just see that he has healthy diet and no much of junk food.
I find this answer helpful
You found this answer helpful
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer.
For a more detailed, immediate answer, try our premium service [Sample answer]