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Chengjin (BL-56), “Sinew Support”, on the calf, relaxes the sinews, relieves cramp and benefits the lower back and anus.
Location
On the back of the lower leg, in the centre of the belly of the gastrocnemius muscle, midway between BL-55 and BL-57.
Anatomy
In the gastrocnemius; the posterior tibial artery; the medial sural cutaneous nerve and the tibial nerve.
Actions & Functions
- Relaxes the sinews and relieves cramp
- Benefits the lower back and treats haemorrhoids
Indications
Cramp and pain of the calf, lower back pain, and haemorrhoids.
Needling
1.0-1.5 cun, perpendicular insertion (can be sensitive).
Moxibustion Suitability
Suitable for moxibustion.
Point Combinations
With BL-57 for calf cramp and haemorrhoids.
Classical Text References
A local point of the Bladder channel on the calf.
Cautions & Contraindications
None specific.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.