BL57

Chengshan(BL57,承山) is an acupuncture point in the meridian named Taiyang Bladder Meridian of Foot.

Meaning

Cheng, sustain; shan, mountain.
The two bellies of the gastrocnemius muscle are as prominent as a mountain. The point is below them, as though holding up a mountain.

Location

The midpoint of the line drawn from Weizhong to the heel tendon at the same level with the apex of the lateral malleolus.

Indication

1. Main point to relieve cramp of the venter of gastrocnemius muscle.
2. Constipation, collapse of the internal piles, collapse of anus.
3. Pain of the back and the lumbar.
4. Sciatic neuralgia, paraplegia, etc.

Method

Puncture perpendicularly or obliquely upward 1-2 cun.