Traditional versus modern Acupuncture
AP point location: The "body inch" or TSUN is the standard way of locating points in relation to each other (See Anon 1980: "Essentials of Chinese AP"). The average TSUN in humans is the width of the joint of phalanx 1-2 of the patient's index finger. 3 TSUN is approximately the width of the patient's hand (thumb excluded) at the level of phalanges 1-2. However, the length of the TSUN varies slightly with the part of the body being searched. The body is divided into a number of TSUN between fixed landmarks:
Points on the Head and Neck are located as follows:
-
from anterior to posterior hairline (midline) is 12 TSUN
- from anterior hairline to spine of C 7 (midline) is 15 TSUN
- from anterior hairline to midpoint of eyebrows (midline) is 3 TSUN
- from midpoint of eyebrows to spine of C 7 (midline) is 18 TSUN
- from anterior hairline to cleft of chin (midline) is 10 TSUN
- between the left and right mastoid processes is 9 TSUN
- between the highest points of left and right cheekbone is 7 TSUN
Points on the Trunk are located as follows:
-
from left to right nipple (male) is 8 TSUN
- from midline of spine to upper angle of scapula is 3 TSUN
- from upper angle of axillary crease to free end of 11th rib is 12 TSUN
- from xiphisternum to umbilicus is 8 TSUN
- from umbilicus to upper edge of pubis is 5 TSUN
- from xiphisternum to upper edge of pubis is 13 TSUN
Points on the Thoracic limb are located as follows:
-
from upper angle of anterior axillary crease to elbow crease is 9 TSUN
- from elbow crease to distal wrist crease (medial or lateral) is 12 TSUN
Points on the Pelvic limb are located as follows:
from tip of great trochanter of femur to lateral edge of popliteal fossa is 19 TSUN
- from lateral edge of popliteal crease to external malleolus of tibia is 16 TSUN
- from upper edge of pubis to medial epicondyle of femur is 18 TSUN
- from medial condyle of femur to medial malleolus of tibia is 13 TSUN.
Thus, point KI27 (2 TSUN from the midline, below the clavicle), can be located easily in a child or in a huge man. The TSUN is a ratio system, as applicable in mice or elephants as it is in humans.

