A child's growth can be tracked by measuring his or her height, weight and head circumference (head circumference). These values are noted on graphs in the "Growth Curve" section of the health record. To draw the growth curves, it is advisable to measure and weigh the child every month from birth until 2 years of age, then at least once every six months until the age of 6 years and finally every year until puberty. 1
Each graph has two pre-drawn stripes: the wider one, limited by two continuous lines, contains the narrower one, limited by two dotted lines. The continuous line in the center of these two bands represents, for each age and gender, the average value for children. However, not all children are within the average - without presenting a growth problem. The lighter bands on the graph reflect this variability; at a given age, two out of three children are in the band bounded by dotted lines, and 94% of them are in the band bounded by solid lines. A measurement outside the lighter area may be considered unusual. 2
The most important thing is that your child's growth is harmonious: that he grows and gains weight regularly. A regular check at the Pediatrician’s will help parents making sure the growth of the child is on the right track.
Here is an example of a growth chart for boys and girls, and you can find all other charts followed by the WHO and the CDC on this link Growth Charts - Homepage (cdc.gov):

Dr. Siba Saade
Pediatrician
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