Auxology is the study of how kids grow and develop from being babies to adults. Scientists who study auxology look at things like how tall and heavy kids are at different ages, how their body parts, such as arms and legs, grow, and what factors can affect their growth.
Basically, auxology helps us understand how kids grow! It helps doctors and other people who work with kids to know if they are growing the way they should be, and if not, what can be done to help them. This is important because growing properly helps us stay healthy and strong!