Hegu point is on the muscle next to the middle point of the second metacarpal bone, which is the high point where the fist-clenching muscle protrudes.

You can also use the graphic method: take the right hand holding the left hand for example. The transverse line of the thumb of the right hand abuts against the web of the tiger's mouth of the left hand, aiming at the midpoint of the second metacarpal bone, and the place where the thumb and fingertip of the right hand abut is Hegu.

These two methods can be compared.