BL 27 — Xiǎo Cháng Shū (小肠俞) — Small Intestine Shu
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1. Overview
BL 27 — Xiǎo Cháng Shū (小肠俞) — is an acupuncture point on the Bladder meridian. Its English name, Small Intestine Shu, reflects the point’s classical character and location. It is used in acupuncture practice as part of channel-balancing prescriptions for a range of conditions.
I am Dr (TCM) Attilio D’Alberto, a member of the British Acupuncture Council with over 25 years of clinical experience. I use BL 27 as part of individually tailored acupuncture prescriptions at my clinic in Wokingham, Berkshire.
2. Location
Located 1.5 cun lateral to the posterior midline of the back, level with the first posterior sacral foramen BL-31 Shangliao.
3. Actions
- Promotes the function of the Small Intestine
- Resolves Dampness
- Clears Heat
- Benefits urination
- Eliminates Damp-Heat from the Lower Jiao
- Drains turbid Dampness
- Separates the pure from the turbid
4. Indications
- Borborygmus
- Abdominal pain
- Mucus in the stools
- Lower abdominal pain and distention
- Dysentery
- Nocturnal emission
- Sciatica
- Dysenteric disorders with pus and Blood
- Enteritis
5. Needling
Puncture perpendicularly 0.8 to 1.2 cun.
Important: Acupuncture should only be performed by a fully qualified practitioner. Never attempt self-needling. All needles I use are sterile, single-use and disposed of immediately after treatment in a clinical sharps container.
6. Clinical notes
BL 27 Xiǎo Cháng Shū (Small Intestine Shu) is classified as: Back Shu point. These classifications inform how the point is used in clinical practice. The point is typically combined with other channel points to form a balanced prescription based on the patient’s individual TCM diagnosis.
7. Treatment at my clinic
I use BL 27 as part of tailored acupuncture prescriptions for conditions including Sciatica, Constipation, Diarrhea, Back pain. Each treatment is individually designed following a full TCM assessment.
I see patients in person at my clinic in Wokingham, Berkshire. Visit the prices page for consultation fees. Return to the acupuncture points directory or the acupuncture main page.















