Location
1.5 thumb widths lateral to the du mai at the level of the 1st posterior sacral foramen.
Cautions
Avoid deep perpendicular needling.
Indications
Conditions for which BL27 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.
Agitation HeartAgitation HeartBenefit Regulate BladderBenefit Regulate IntestinesBenefit Regulate Qi Small IntestineConstipationDamp CloudyDamp CloudyDiabetes InsipidusDiabetes InsipidusDiarrheaShan DisorderShan DisorderDryness Mouth AcuteDryness Mouth AcuteDysenteryBreathing Shortness Of Breath ProblemsBreathing Shortness Of Breath ProblemsDefecation ProblemsDefecation ProblemsUrinary ProblemsUrinary ProblemsBedwettingHemorrhoidsVaginal DischargeVaginal DischargeMyalgia Back Long ExtensorsMyalgia Back Long ExtensorsLower Abdominal PainLower Abdominal PainLower Back PainLower Back PainHaemorrhoids PainHaemorrhoids PainParaumbilical PainParaumbilical PainTesticle PainTesticle PainRegulate BladderRegulate IntestinesRegulate Qi Small IntestineUrinary RetentionUrinary RetentionSeparate Pure From CloudySeparate Pure From CloudyBlood in StoolBlood in StoolStools MucusStools MucusFeet SwellingFeet SwellingDamp Heat SyndromeDamp-heat SyndromeUrine BloodUrine BloodUrine DarkUrine DarkUrine YellowUrine Yellow
Protocols using BL27
- Cervical Pain, Labour Pain, Uterine Pain – LI04, ST29, SP12, BL27, KD11, LV03 (doi:10.1136/acupmed-2016-011164 ↗)
- Abdominal Pain, Postoperative Pain, Post-Operative Nausea, Post-Operative Vomiting, Abdominal Bloating – LI04, ST36, ST37, BL21, BL27, PC06 (doi:10.2147/CMAR.S292325 ↗)
- Radiculopathy, Lower-limb Numbness, Lower-back Pain, Radiating Lower-limb Pain, Disc-herniation Lumbar Extruded – BL23, BL24, BL25, BL26, BL27, BL28, BL29, BL30, GB30 (doi:10.3389/fneur.2024.1381292 ↗)
- Knee Pain, Osteoarthritis Knee, Stiffness Knee – ST34, BL19, BL21, BL23, BL25, BL27, BL40 (doi:10.1186/s12906-025-04891-1 ↗)
- 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 (doi:10.21037/acr-2025-189 ↗)
- Premature Ejaculation, Sexual Dysfunction – ST36, SP12, SP13, BL23, BL27, BL28, BL29, BL30, BL31, BL32, BL33, BL34, BL47, KD01, KD03, CV04, CV06 (doi:10.4103/0973-6131.113408 ↗)
- 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 ↗)
- 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 ↗)
- Heat Bladder, Damp Bladder, Heat Bladder, Damp Bladder – ST28, SP11, SP12, HT08, BL22, BL27, BL28, BL31, BL35, BL36, BL39, KD10 (Yang Yong-Xuan, clinical point-selection notes)
- 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 (Yang Yong-Xuan, clinical point-selection notes)
- Obesity Simple – BL25, BL26, BL27, BL28, BL30, KD03, KD11, KD12, KD13, KD14, KD15, TB06 (Zhang Xiaozhe. A Clinical Survey of Acupuncture Slimming. Journal of Traditional Chinese Medicine 2008; 28(2): 139-147)
- 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 (Zhang Xiaozhe. A Clinical Survey of Acupuncture Slimming. Journal of Traditional Chinese Medicine 2008; 28(2): 139-147)