# BL27 Xiaochangyu (Small Intestine Shu Point) – Bladder Meridian

小腸俞 · xiǎo cháng yú

Location: 1.5 thumb widths lateral to the du mai at the level of the 1st posterior sacral foramen.

Cautions: Avoid deep perpendicular needling.

Canonical page: https://acuiq.com/points/bl27

## Indications

An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

Agitation Heart, Agitation Heart, Benefit Regulate Bladder, Benefit Regulate Intestines, Benefit Regulate Qi Small Intestine, Constipation, Damp Cloudy, Damp Cloudy, Diabetes Insipidus, Diabetes Insipidus, Diarrhea, Shan Disorder, Shan Disorder, Dryness Mouth Acute, Dryness Mouth Acute, Dysentery, Breathing Shortness Of Breath Problems, Breathing Shortness Of Breath Problems, Defecation Problems, Defecation Problems, Urinary Problems, Urinary Problems, Bedwetting, Hemorrhoids, Vaginal Discharge, Vaginal Discharge, Myalgia Back Long Extensors, Myalgia Back Long Extensors, Lower Abdominal Pain, Lower Abdominal Pain, Lower Back Pain, Lower Back Pain, Haemorrhoids Pain, Haemorrhoids Pain, Paraumbilical Pain, Paraumbilical Pain, Testicle Pain, Testicle Pain, Regulate Bladder, Regulate Intestines, Regulate Qi Small Intestine, Urinary Retention, Urinary Retention, Separate Pure From Cloudy, Separate Pure From Cloudy, Blood in Stool, Blood in Stool, Stools Mucus, Stools Mucus, Feet Swelling, Feet Swelling, Damp Heat Syndrome, Damp-heat Syndrome, Urine Blood, Urine Blood, Urine Dark, Urine Dark, Urine Yellow, Urine Yellow

## Most often selected alongside BL27

Sourced protocols in the index pairing each point with this one. Corpus frequency, not a combination to use.

- BL25 (Large Intestine Shu Point) – 11 protocols
- BL23 (Kidney Shu Point) – 10 protocols
- BL28 (Bladder Shu Point) – 9 protocols
- BL26 (Original Qi Gate Shu Point) – 8 protocols
- BL24 (Sea Of Qi Shu Point) – 7 protocols
- BL30 (White Ring Shu Point) – 6 protocols
- BL29 (Middle Spine Shu) – 5 protocols
- GB30 (Jumping Circle) – 5 protocols

## Protocols using BL27

| Symptoms | Points | Course | Source | Kind | Caveat |
|---|---|---|---|---|---|
| Cervical Pain, Labour Pain, Uterine Pain | LI04, ST29, SP12, BL27, KD11, LV03 | 1 days | doi:10.1136/acupmed-2016-011164 | trial | Point selection reported in a published study. |
| Abdominal Pain, Postoperative Pain, Post-Operative Nausea, Post-Operative Vomiting, Abdominal Bloating | LI04, ST36, ST37, BL21, BL27, PC06 | 3 days | doi:10.2147/CMAR.S292325 | trial | Point selection reported in a published study. |
| Radiculopathy, Lower-limb Numbness, Lower-back Pain, Radiating Lower-limb Pain, Disc-herniation Lumbar Extruded | BL23, BL24, BL25, BL26, BL27, BL28, BL29, BL30, GB30 | 28 days | doi:10.3389/fneur.2024.1381292 | trial | Point selection reported in a published study. |
| Knee Pain, Osteoarthritis Knee, Stiffness Knee | ST34, BL19, BL21, BL23, BL25, BL27, BL40 | 84 days | doi:10.1186/s12906-025-04891-1 | trial | Point selection reported in a published study. |
| Groin Pain, Lower Back Pain, Sacroiliac Pain, Pubic Symphysis Pain, Difficulty Walking, Postpartum Symphysis Pubis Diastasis, Qi Stagnation Blood Stasis | BL23, BL24, BL25, BL26, BL27, BL28, BL29, BL30, BL53, BL54, GB27, GB28 | 23 days | doi:10.21037/acr-2025-189 | trial | Point selection reported in a published study. |
| Premature Ejaculation, Sexual Dysfunction | ST36, SP12, SP13, BL23, BL27, BL28, BL29, BL30, BL31, BL32, BL33, BL34, BL47, KD01, KD03, CV04, CV06 | 21 days | doi:10.4103/0973-6131.113408 | trial | Point selection reported in a published study. |
| Leg Pain, Leg Numbness, Leg Weakness, Radiculopathy Lumbar, Lower-back Pain | BL22, BL23, BL24, BL25, BL26, BL27, BL31, BL32, BL33, BL34, BL54, GB30, GV03, GV04 | – | doi:10.3831/KPI.2025.28.4.269 | trial | Point selection reported in a published study. |
| Lumbar Pain, Stenosis Lumbar Spinal, Claudication Neurogenic, Lower Extremity Pain | SP06, BL23, BL24, BL25, BL26, BL27, BL36, BL40, BL57, BL60, GB30, GB31, GB34, GV03, GV04 | – | doi:10.13517/j.cnki.ccm.2025.05.015 | trial | Point selection reported in a published study. |
| Ileus Postoperative, Abdominal Postoperative Pain, Recovery Postoperative | LI04, ST36, ST37, BL21, BL27, PC06 | 3 days | doi:10.2147/CMAR.S292325 | trial | Point selection reported in a published study. |
| Sciatica, Low Back Pain, Disc Herniation Lumbar | BL23, BL24, BL25, BL26, BL27, BL28, BL29, BL30, GB30 | 23 days | doi:10.3389/fneur.2024.1381292 | trial | Point selection reported in a published study. |
| Low Back Pain, Pelvic Girdle Pain | BL23, BL24, BL25, BL26, BL27, BL28, BL31, BL32, BL54 | – | doi:10.1186/s40814-016-0107-6 | trial | Point selection reported in a published study. |
| Pubic Symphysis Pain, Postpartum Symphysis Pubis Diastasis | BL23, BL24, BL25, BL26, BL27, BL28, BL29, BL30, BL53, BL54, GB27, GB28 | – | doi:10.21037/acr-2025-189 | trial | Point selection reported in a published study. |
| Leg Pain, Back Low Pain, Stenosis Lumbar Spinal, Claudication Neurogenic | BL27, BL52, GB30, GV06 | – | doi:10.2147/JPR.S625942 | trial | Point selection reported in a published study. |
| Heat Bladder, Damp Bladder, Heat Bladder, Damp Bladder | ST28, SP11, SP12, HT08, BL22, BL27, BL28, BL31, BL35, BL36, BL39, KD10 | 7 days | Yang Yong-Xuan, clinical point-selection notes | text | Point selection recorded in a clinical text or case report. |
| Damp Large Intestine, Heat Large Intestine, Damp Large Intestine, Heat Large Intestine | LI01, LI03, LI09, LI11, ST22, ST25, SP04, SP15, SP16, BL25, BL27, BL28, BL37, BL39 | 7 days | Yang Yong-Xuan, clinical point-selection notes | text | Point selection recorded in a clinical text or case report. |
| Obesity Simple | BL25, BL26, BL27, BL28, BL30, KD03, KD11, KD12, KD13, KD14, KD15, TB06 | 90 days | Zhang Xiaozhe. A Clinical Survey of Acupuncture Slimming. Journal of Traditional Chinese Medicine 2008; 28(2): 139-147 | text | Point selection recorded in a clinical text or case report. |
| Obesity Simple | LI04, LI11, LI14, ST24, ST25, ST27, ST32, ST34, ST36, ST40, SP04, SP06, SP10, SP15, BL13, BL15, BL17, BL18, BL19, BL20, BL21, BL23, BL25, BL27, PC06, LV03, CV04, CV06, CV10, CV12 | 60 days | Zhang Xiaozhe. A Clinical Survey of Acupuncture Slimming. Journal of Traditional Chinese Medicine 2008; 28(2): 139-147 | text | Point selection recorded in a clinical text or case report. |

---

AcuiQ-authored prose (symptom and meridian descriptions, the wiki, the auricular crosswalk) is licensed CC-BY-4.0: https://creativecommons.org/licenses/by/4.0/. The assembled protocol compilation is not: build on it with attribution, but do not redistribute it whole as a dataset – https://acuiq.com/terms. The underlying findings are the cited sources' claims – each entry carries its citation; verify against the source before relying on it. Not medical advice: https://acuiq.com/terms