Yes. Your pediatrician won’t bring it up unless it’s really an issue. So listen carefully. He or she looks at the height and weight chart to get your child’s BMI (body mass index), a measure of fatness. Your pediatrician is looking for a change. For example, if your child is in the 80th percentile for BMI, and suddenly there’s a blip and he’s in the 90th or 95th, something has happened. What’s going on? This is especially important if there are any health issues in the family, such as a history of heart disease.