This phenomenon may be normal but can also indicate an underlying health problem. This height and weight correlation is plotted using a weight for length chart or body mass index chart. Most physicians are now also measuring body mass index bmi for age percentile an additional graph that determines if your childs weight is out of proportion to his height. A spurt is a sudden increase in weight or height. We usually like to see the height and weight proportional so if your child is in the 50 percent for height but 90 percent for weight there may be a problem. In some children weight spurts happen before height spurts.
Its important for weight to be compared to height to ensure that the child is gaining weight well in comparison to his or her height. During the first two to three years of life it is not uncommon to see a childs growth deviate from its previous percentile either upward or downward. This is how children become overweight. Childrens height and weight usually though not always follow a given percentile from birth to adulthood. Weight spurts just as height spurts are part of normal growth. Sometimes toddlers will lose weight as they become more active.
Sometimes weight can get ahead of height. Nutrition related concerns some babies and toddlers are diagnosed with a condition called failure to thrive in which children do not gain weight or height as they should according to the american academy of pediatrics 2 this is a verified and trusted source kidshealth. According to the march 2000 recommendations for preventative pediatric health care by the american academy of pediatrics a childs height and weight should be measured at least at birth age 2 4 days 1 2 4 6 9 12 15 18 and 24 months and every year thereafter through age 21. Other children just gain more weight than they need for their height.