大腸俞 (Dàchángshū) — Large Intestine Shu
Bladder channel · point 25
Back-Shu point of the Large Intestine
Location
On the lower back, 1.5 cun lateral to the lower border of the spinous process of L4.
How to locate: Level with the highest points of the iliac crests.
Needling
Depth:
0.8–1.2 cun
Angle:
Perpendicular
Functions
- Regulates the intestines and relieves constipation and diarrhoea
- Strengthens the lower back and legs
- Activates the channel
Indications
Constipation and diarrhoeaabdominal pain and distensionlow back pain and sciaticaweakness and numbness of the leghaemorrhoids
Clinical Notes
The most-used lumbar Back-Shu point in low back pain and sciatica; often the site of maximum tenderness in L4–L5 disc presentations.
Similar Points
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