The size of the human skeleton can be determined by measuring and observing with bare hands. 1. Measurement with bare hands: The size of the skeleton can be judged by circling the protruding part of the wrist bone with the thumb and finger of the hand. If the thumb and finger tips can just touch, the skeleton is medium. If the tips of the two fingers cannot touch each other, the skeleton is large, and if the tips of the two fingers can overlap and cross, the skeleton is small. 2. Observation method: usually through the appearance of the examination to determine the size of the skeleton, big bones in the bone protruding parts of the more obvious, and touch the muscles of the limbs have a sense of firmness. Although the body of obese people is very bulky, but the bony protrusion is not obvious, and due to excessive fat will lead to touch the muscles show a soft feeling. The small bone structure of the person’s bony protuberance is not obvious, the muscles are not firm.