hello doc my son is 4 year and 9 months old his height is 111cm nd weight is 17.7kgs this weight nd height is ok according to his age ?? but he is not increasing height from last 2 months

A. These kids typically gain about 4–5 pounds (2 kilograms) and grow about 2–3 inches (5 to 8 centimeters) per year. An average 4-year-old weighs about 40 pounds and is about 40 inches tall.