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
- Abdominal Pain, Postoperative Pain, Post-Operative Nausea, Post-Operative Vomiting, Abdominal Bloating – LI04, ST36, ST37, BL21, BL27, PC06 (https://doi.org/10.2147/CMAR.S292325)
- Cervical Pain, Labour Pain, Uterine Pain – LI04, ST29, SP12, BL27, KD11, LV03 (https://doi.org/10.1136/acupmed-2016-011164)
- Knee Pain, Osteoarthritis Knee, Stiffness Knee – ST34, BL19, BL21, BL23, BL25, BL27, BL40 (https://doi.org/10.1186/s12906-025-04891-1)
- Osteoarthritis, Knee Pain – ST34, BL23, BL25, BL27, BL40 (https://doi.org/10.3390/toxins13090608)
- Constipation – LI20, ST22, ST25, ST28, ST30, ST37, ST40, ST41, ST44, SP02, SP03, SP05, SP13, SP14, SP15, SP16, BL25, BL26, BL27, BL28, BL32, BL33, BL34, BL39, BL51, BL56, BL57, KD01, KD04, KD06, KD15, KD16, KD17, KD18, TB05, TB06, GB27, GB34, GB41, LV01, LV02, LV03, LV13, CV06, CV07, XB09, XC15, XC16, XC17 (DEADMAN-COMPOSITE)
- Bedwetting – LU05, ST22, SP06, SP09, SP11, HT05, HT07, HT08, BL23, BL26, BL27, BL28, BL39, BL40, KD03, KD06, KD11, GB34, LV01, LV02, LV03, LV08, LV09, LV10, CV01, CV02, CV04, XB05, XC07, XL19, XU17 (DEADMAN-COMPOSITE)
- Benefit Regulate Intestines – LI07, LI10, ST22, ST25, ST37, ST39, ST43, ST44, SP15, SP16, BL25, BL27, KD15, KD16, PC03, PC07, GB25, CV08, CV09 (DEADMAN-COMPOSITE)
- Myalgia Back Long Extensors – BL19, BL20, BL22, BL24, BL27, BL51 (DEADMAN-COMPOSITE)
- Breathing Shortness Of Breath Problems – LU02, LU04, LU05, LU07, LU08, LU09, LU10, ST09, ST10, ST15, ST16, ST20, ST36, ST37, ST40, SP12, SP18, SP19, SP20, HT01, HT07, SI04, BL13, BL14, BL15, BL18, BL27, KD04, KD07, PC01, PC07, TB02, GB25, GB40, GB44, LV02, LV13, CV03, CV14, CV17, CV22, GV11, GV14, GV20 (DEADMAN-COMPOSITE)
- Urine Dark – LI08, LI09, ST37, ST39, SI02, SI03, BL27, BL28, BL32, BL40, BL46, BL47, BL54, KD10, KD18, PC08, GB12, GB25, CV03, CV04, CV05, CV06, CV07, CV10, CV12, CV24, GV01, GV02, GV05, GV27 (DEADMAN-COMPOSITE)
- Urinary Problems – LU07, LI06, LI09, LI15, ST27, ST36, ST40, SP06, SP07, SP08, SP09, SP10, SP11, SP12, HT08, SI02, BL22, BL23, BL25, BL26, BL27, BL28, BL31, BL32, BL33, BL34, BL36, BL39, BL40, BL52, BL53, BL54, BL67, KD01, KD02, KD04, KD05, KD06, KD08, KD10, KD11, KD13, KD14, PC05, PC06, PC07, GB25, LV01, LV02, LV03, LV04, LV05, LV08, LV09, LV10, CV01, CV02, CV04, CV05, CV07, GV01, XB02S4, XB08, XC17 (DEADMAN-COMPOSITE)
- Lower Back Pain – LU01, LI10, ST09, ST12, ST30, ST31, ST32, ST34, ST36, ST39, SP02, SP03, SP08, SP09, SI03, SI04, SI06, SI07, BL11, BL12, BL13, BL16, BL18, BL19, BL20, BL25, BL26, BL27, BL30, BL31, BL32, BL33, BL34, BL35, BL36, BL39, BL41, BL42, BL43, BL44, BL45, BL46, BL47, BL52, BL54, BL55, BL58, BL59, BL60, BL61, BL62, BL63, BL64, BL65, KD01, KD03, KD04, KD08, KD13, GB21, GB25, GB27, GB29, GB30, GB42, LV02, LV03, LV04, LV05, LV13, CV03, CV04, CV05, GV01, GV02, GV03, GV04, GV05, GV06, GV07, GV08, GV09, GV10, GV11, GV12, XB04, XB07, XB08, XH06, XU07A, XU07B, XU15A, XU15B, XU15C (DEADMAN-COMPOSITE)