How to find
When palpating along the border of the ‘red and white’ skin on the lateral aspect of the foot, at approximately the midpoint of the length of the foot, a clearly defined bony structure can be felt. This is the tuberosity of the 5th metatarsal bone. Distal to it (towards the toes), you can feel a further prominent bony structure, the head of the 5th metatarsal bone (or the 5th metatarsophalangeal joint). BL-66 is located directly distal to it, in a depression at the junction of the base and the shaft of the proximal phalanx of the little toe. BL 65 (Restraining Bone) is located proximal to the head of the 5th metatarsal bone. SP 02 (Great Metropolis) is located in a comparable position on the medial aspect of the foot. Located in comparable positions on the hand are SI 02 (Front Valley) (on the ulnar aspect) and LI 02 (Second Space) (on the radial aspect).
At the lateral border of the foot, in the depression distal to the metatarsophalangeal joint of the little toe.
- Clears the head
- Descends the Lung and Stomach Qi
- Calms the Shen
Ying-spring point, Water point, ben point (Five Phases point).