The medical term “dwarfism” is also known as short stature. It refers to children whose height is less than two standard deviations, or below the 3rd percentile, of the normal height reference value for children of the same race, age and sex under similar circumstances, so it includes all children who meet the criteria for short stature. For example, if a child always sits in the first row of the class or is always in the top three in the standing queue, most of these children are short. Dwarfism, on the other hand, is a type of dwarfism that is genetically determined and is relatively shorter in height, and their proportions are not normal.