How to find
When palpating along the bony structures on the lateral aspect of the foot, a prominent bony landmark can be felt approximately at the midpoint of the foot. This is the tuberosity of the 5th metatarsal bone. Distal to it (towards the toes), you can feel a further bony structure, the head of the 5th metatarsal bone. Directly proximal to it, at the border of the ‘red and white’ skin (border dorsum/sole of the foot), BL-65 can be palpated in a depression. BL 66 (Foot Connecting Valley) is located in a depression distal to the head of the 5th metatarsal bone (distal to the metatarsophalangeal joint), at the junction of the base and the shaft of the proximal phalanx of the little toe. SP 03 (Supreme White) is located in a comparable position on the medial aspect of the foot (proximal to the head of the 1st metatarsal bone). Si 03 (Back Stream) and LI 03 (Third Space) are located in comparable positions at the ulnar/lateral border of the hand.
On the lateral aspect of the foot, in the depression proximal to the head of the 5th metatarsal bone.
- Expels pathogenic factors (especially from the head)
- Clears Heat
- Opens the channel and luo vessels, alleviates pain
- Calms the Shen
Shu-stream point, Wood point, sedation point.