People’s body sizes vary, which is why when you a measuring for acupuncture points, the measurements are specific to each person’s body. Acupuncture points are measured from physical landmarks. Often a cun (pronounced “soon”) or body inch is used.
One cun is the width of your thumb at the knuckle.
Three cun is equal to the index, middle, ring finger, and pinky measured together.
photo: Molliva Jon