Growth charts are used to compare your child's height, weight, and head size against children of the same age.
Growth charts can help both you and your health care provider follow your child as he or she grows. These charts may provide an early warning that your child has a medical problem.
Growth charts were developed from information gained by measuring and weighing thousands of children. From these numbers, the national average weight and height for each age and gender were established.
The lines or curves on growth charts tell how many other children in the United States weigh a certain amount at a certain age. For example, the weight on the 50th percentile line means that half of the children in the U.S. weigh more than that number and half of the children weigh less.
WHAT GROWTH CHARTS MEASURE
Your child's health care provider will measure the following during each well-child visit:
Beginning at age 2, a child's body mass index (BMI) can be calculated. Height and weight are used to figure out the BMI. A BMI measurement can estimate a child's body fat.
Each of your child's measurements is placed on the growth chart. These measurements are then compared with the standard (normal) range for children of the same gender and age. The same chart will be used as your child grows older.
HOW TO UNDERSTAND A GROWTH CHART
Many parents worry if they learn that their child's height, weight, or head size is smaller than those of most other children the same age. They worry about whether their child will do well in school, or be able to keep up in sports.
Learning a few important facts can make it easier for parents to understand what different measurements mean:
Some changes to your child's growth chart may worry your health care provider more than others:
Abonormal growth on the growth charts is only a sign of a possible problem. Your doctor will determine whether it is an actual medical problem, or whether your child's growth just needs to be watched carefully.
Height and weight chart
Updated by: David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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