Proportional Measurements

These standard measurements are applicable to patients of different sex, age, body size or weight. These are proportional measurements and referred to as "Cun" measurements.

Head & Face

The distance from the glabella to the anterior hairline is 3 Cun. The distance from the anterior to the posterior hairline is 12 Cun. Between the two mastoid processes, the distance is 9 Cun.

Chest & Back

From the end of the axillary fold on the lateral side of the chest to the tip of the eleventh rib, the distance is 12 Cun. Between the two nipples, the distance is 8 Cun. The distance between the medial border of the scapula and the posterior mid line is 3 Cun.

Abdomen

From the sternal costal angle to the center of the umbilicus, the distance is 8 Cun. Between the center of the umbilicus to the upper border of the symphysis pubis, the distance is 5 Cun.

Upper Arm

Between the end of the axillary fold and the transverse cubital crease, the distance is 9 Cun.

Lower Arm

Between the transverse cubital crease and the transverse wrist crease, the distance is 12 Cun.

Upper Leg

From the level of the upper border of the symphysis pubis to the medial epicondyle of the femur, the distance is 18 Cun. From the prominence of the great trochanter to the patella is 19 Cun. From the center of the gluteal fold to the center of the popliteal fossa is 14 Cun.

Lower Leg

Between the center of the patella and the tip of the lateral malleolus, the distance is 16 Cun. From the tip of the lateral malleolus to the heel, the distance is 3 Cun. From the lower border of the medial condyle of the tibia to the medial malleolus is 13 Cun.

Hand

When the middle finger is flexed, the distance between the two medial ends of the creases of the interphalangeal joint is 1 Cun. The width of the first interphalangeal joint (the thumb) is also 1 Cun. The width of the index, middle, ring, and little fingers at the level of the dorsal skin crease of the proximal interphalangeal joints is 3 Cun.