Method one

Use the middle finger and thumb of the other hand to gently buckle the most prominent part of the wrist bone of the other hand.

If the thumb and middle finger overlap more than the width of a nail, then you are a small skeleton;

If the thumb and middle finger just touch, then you are the skeleton in the middle;

If the thumb and middle finger don't touch each other, it is a big skeleton.

Method 2

You can measure the circumference of your wrist with a tape measure. The smaller the r value obtained after accounting, the larger the skeleton.

R value of boys: less than 9.6-9.6~ 10.4- 1 middle skeleton is greater than 10.4- 1 small skeleton.

R value of female students: less than 9.9, large skeleton 9.9~ 10.9, middle skeleton greater than 10.9, small skeleton.