Bladder
BL22
三焦俞 · Sanjiaoshu
San Jiao Shu
San Jiao transport point at the low ribs.
Back-shu of the San Jiao
Use caution
System
- Channel
- Bladder (BL)
- Element
- Water
- Yin or yang
- yang
- Organ system
- Bladder
- Region
- Back
- Limb rule
- Foot Taiyang
Where it is
Two finger-widths lateral to the spine, about level with the first lumbar vertebra, just below the last rib.
Nearby: Kidney neighborhood. Do not grind under the last rib.
Traditionally said to
Back-shu of the San Jiao. Taught for waterway patterns: lower swelling and a stuck middle, in classical metaphor.
What people look up
Acupressure
Broad and mild, 30 seconds, on muscle lateral to the spine.
When not to press: Pain under the ribs with urinary symptoms needs care.
About 30–90 seconds is the usual window, unless the step above is shorter. Stop if pain, dizziness, or anything unusual shows up.
Licensed practice only
Needle depth, angle, electroacupuncture
Textbook language for students. Not instructions. A cun is a body-inch on that person, not a ruler inch. Do not needle yourself.
Depth
Often 0.5–1 cun perpendicular or oblique. Kidney is deep and lateral. Confirm in a manual.
Angle
Perpendicular or oblique medial, not under the rib toward the kidney.
Electroacupuncture
Introductory charts rarely assign a standard electroacupuncture setting here. Clinics that use current choose frequency and intensity for that person. No milliamp figure is given, because copying one would be misleading.
Nearby on this channel
Stomach Shu
Stomach transport point on the lower thoracic back.
Use caution
Kidney Shu
The low-back point level with the waist, kidney shu.
Use caution
Spleen Shu
Spleen transport point for tired digestion.
Use caution
Large Intestine Shu
Low-back point for the large intestine shu and local ache.
Herbs often paired for a similar pattern
Tags
sanjiaoshu · triple burner shu