43
Indications
78
Protocols
AcuiQ Self-Treatment Guide
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Location
1.5 thumb widths lateral to the du mai at the level of the 2nd posterior sacral foramen.
Categories
- Back-Shu point of the Bladder
The classical groups this point belongs to, from Deadman, Al-Khafaji & Baker, A Manual of Acupuncture.
Cautions
Avoid deep perpendicular needling.
Indications
Conditions for which BL28 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.
Muscle WastingLeg Muscle WastingConstipationDamp ItchinessQi DeficiencyPenis Swelling DeficiencyDeficiency-swelling PenisDiarrheaDefecation ProblemsUrinary ProblemsBedwettingFibroids / MassesFibroids MassesFibroids / Masses Jia Ju AbdomenFibroids Masses Jia Ju AbdomenFibroids / Masses Ji HardFibroids Masses Ji HardFibroids / Masses JuFibroids Masses JuAbdominal FullnessHeaviness LegSitting For Long StiffnessImmobility Sitting For LongLeg NumbnessAbdominal PainButtock PainCoccyx PainGenitals External PainSacrum PainLumbar Spine PainVagina PainUrinary RetentionSciaticaStagnation SwellingDamp Heat Jiao Lower SyndromeDamp-heat Jiao Lower SyndromeThirsting ExcessiveUlceration GenitalsUrination Irregular FlowPainful UrinationUrine CloudyUrine Dark
TCM actions
What classical sources say BL28 does in the terms of Chinese medicine theory. These describe the point, not a condition.
Benefit Back LumbarBenefit LegsBenefit Legs InferiorBenefit Regulate BladderRegulate Bladder
Protocols using BL28
The 50 best-sourced of 78, ranked by strength of evidence. The count above is the full figure.
- Urinary Retention, Urination Difficulty, Abdominal Distending Pain – SP06, SP09, BL23, BL28, BL32, BL39, CV02, CV03, CV04 (doi:10.1016/s0254-6272(08)60020-5 ↗)
- Urinary Retention, Incomplete Bladder Emptying, Stroke Sequelae – SP06, BL28, BL32 (doi:10.2147/CIA.S37531 ↗)
- Enuresis Nocturnal, Bedwetting – ST36, SP04, SP06, SP12, HT07, HT09, BL23, BL28, BL32, KD03, KD05, CV02, CV03, CV06, GV04, GV15, GV20 (doi:10.1177/147323000303100611 ↗)
- Incontinence Urinary Stress, Incontinence Urinary Mixed, Incontinence Urinary Urgency – SP03, SP06, BL14, BL18, BL20, BL23, BL28, BL31, BL32, BL33, BL34, KD03, KD07, PC06, LV03, CV03, CV04, CV06, GV04, GV20 (doi:10.1136/acupmed-2015-010828 ↗)
- Spinal Cord Injury, Bladder Dysfunction Neurogenic, Urinary Retention Chronic – SP06, SP09, BL23, BL28, CV02, CV03, CV04, CV06 (doi:10.1155/2016/9245186 ↗)
- Spinal Cord Injury, Bladder Dysfunction Neurogenic, Urinary Retention Chronic – SP06, SP09, BL23, BL28, BL31, BL32, BL33, BL34, CV02, CV03, CV04, CV06 (doi:10.1155/2016/9245186 ↗)
- Nocturia, Benign Prostatic Hyperplasia, Urination Urgency, Urination Hesitancy, Urination Slow Stream, Urination Frequency – ST28, BL23, BL28, CV03, CV06 (doi:10.1097/MD.0000000000030925 ↗)
- 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 ↗)
- 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 ↗)
- Urinary Dysfunction, Pelvic Pain, Prostatitis Chronic – SP06, BL10, BL23, BL28, BL40, BL67, KD01, KD10, CV03, CV04 (doi:10.1186/1749-8546-2-1 ↗)
- 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 ↗)
- Urinary Retention Post-stroke – SP06, SP09, BL22, BL23, BL28, BL67, KD03, CV03, CV04, CV06 (doi:10.13048/jkm.16001 ↗)
- Colic Renal, Lumbar Acute Pain – ST36, SP06, SP09, BL23, BL28, GB25, CV03, CV04 (doi:10.1016/j.jtcms.2025.09.006 ↗)
- Urinary Retention Postoperative, Urinary Retention Post-hemorrhoidectomy – ST28, ST36, SP06, SP09, SP10, BL28, BL57, KD03, CV03, CV04, CV06, CV08 (doi:10.19917/j.cnki.1005-0779.024179 ↗)
- Depression Post-stroke, Urinary Retention Post-stroke – SP06, SP09, BL28, BL39, LV03, LV05, CV03 (doi:10.27026/d.cnki.ggszc.2023.000230 ↗)
- Dysuria, Urinary Frequency, Urinary Urgency, Urethral Syndrome – SP06, BL23, BL28, CV03, CV04, CV06 (doi:10.19917/j.cnki.1005-0779.024117 ↗)
- Intestinal Disorders, Bowel Disease – BL25, BL28 (doi:10.13703/j.0255-2930.2016.05.028 ↗)
- Enuresis Nocturnal – SP06, BL23, BL28, CV03, CV04 (doi:10.16588/j.cnki.issn2096-8426.2021.06.013 ↗)
- Urinary Retention Post-stroke – ST28, SP06, SP09, BL28, BL32, BL33, BL34, CV03, CV04 (doi:10.19917/j.cnki.1005-0779.023135 ↗)
- Urinary Incontinence, Stroke Sequelae Post-cerebral Infarction – SP06, BL23, BL28, PC06, CV03, CV06, GV26 (doi:10.13460/j.issn.1005-0957.2018.13.0253 ↗)
- Urinary Retention – LI04, ST28, ST36, SP06, SP09, SP10, BL22, BL23, BL28, BL32, BL54, KD03, LV03, CV02, CV03, CV04, CV06, GV20 (doi:10.13288/j.11-2166/r.2013.23.017 ↗)
- Spinal Cord Injury, Neurogenic Bladder, Urinary Dysfunction Retention – ST36, SP06, SP09, BL23, BL28, BL31, BL32, BL33, BL34, CV03, CV04, CV06 (doi:10.16294/j.cnki.1007-659x.2020.02.006 ↗)
- Renal Colic Pain – SP06, BL23, BL28, GB25, CV03 (doi:10.27126/d.cnki.ghlzy.2024.000025 ↗)
- Renal Colic Pain – ST36, SP06, SP09, BL23, BL28, BL40, GB25, CV03 (doi:10.27126/d.cnki.ghlzy.2024.000025 ↗)
- Urinary Incontinence Stress – BL28, CV03, CV04, CV06 (doi:10.13703/j.0255-2930.20240331-k0002 ↗)
- Stroke, Urinary Problems, Incomplete Bladder Emptying, Urinary Retention Post-stroke, Urinary Retention – SP06, BL28, BL32 (doi:10.2147/cia.s37531 ↗)
- Urinary Frequency, Incontinence Bladder, Urinary Retention, Spinal Cord Injury, Bladder Dysfunction Neurogenic, Incontinence Urinary, Bladder Dysfunction, Spinal Cord Injury Incomplete – BL23, BL28, BL32, CV03, CV04, GV03, GV04 (doi:10.13703/j.0255-2930.20230831-0004 ↗)
- Autonomic Dysfunction, Autonomic Problems, Multiple System Atrophy – ST25, BL23, BL25, BL28, BL32, KD06, CV03, CV04, GV04, GV20 (doi:10.13703/j.0255-2930.20241203-k0005 ↗)
- Obesity Simple – BL25, BL26, BL27, BL28, BL30, KD03, KD11, KD12, KD13, KD14, KD15, TB06 (doi:10.1016/s0254-6272(08)60033-3 ↗)
- Obesity – ST24, ST25, ST26, ST28, BL23, BL25, BL28, GB26, CV04, CV06, CV07, CV08, CV09, CV12, XB07 (doi:10.1016/s0254-6272(08)60033-3 ↗)
- Low Back Pain, Stenosis Lumbar Spinal, Claudication Neurogenic – BL23, BL25, BL28, XB02L1, XB02L2, XB02L3, XB02L4, XB02L5 (doi:10.1016/j.imr.2026.101323 ↗)
- Sciatica, Low Back Pain, Disc Herniation Lumbar – BL23, BL24, BL25, BL26, BL27, BL28, BL29, BL30, GB30 (doi:10.3389/fneur.2024.1381292 ↗)
- Low Back Pain, Pelvic Girdle Pain – BL23, BL24, BL25, BL26, BL27, BL28, BL31, BL32, BL54 (doi:10.1186/s40814-016-0107-6 ↗)
- 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 ↗)
- Back Low Pain, Claudication Neurogenic, Leg Radiating Pain, Spinal Stenosis Lumbar – BL23, BL25, BL28, XB02L1, XB02L2, XB02L3, XB02L4, XB02L5 (doi:10.1016/j.imr.2026.101323 ↗)
- Infection Urinary Recurrent – ST36, SP06, BL24, BL25, BL26, BL27, BL28, BL60, KD06, KD07, KD13, KD14, KD15, GV20, CYC11, CYC13, IAC03 (doi:10.1007/s00192-024-05872-7 ↗)
- Sacroiliac Pain, Postpartum Pain – BL23, BL26, BL28, BL31, BL40, GB29 (doi:10.1097/MD.0000000000036858 ↗)
- Urinary Retention, Urinary Retention Postoperative – BL28, BL54, BL60, CV02, CV03 (doi:10.3831/kpi.2024.27.2.123 ↗)
- Prostatitis Chronic – SP06, SP09, BL23, BL28, BL32, BL54, CV03, CV04, CV06, GV04 (doi:10.13703/j.0255-2930.2017.08.011 ↗)
- Prostatitis Chronic, Pelvic Pain – BL06, BL07, BL28, BL32, CV03, CV04, GV20, GV21, GV22, GV24 (doi:10.13703/j.0255-2930.2016.12.006 ↗)
- Urinary Retention Postoperative – ST28, SP06, SP09, BL28, CV03, CV04, CV06 (doi:10.13703/j.0255-2930.2019.07.008 ↗)
- Urinary Retention Post-hemorrhoidectomy – SP06, BL28, CV03, CV04 (doi:10.13703/j.0255-2930.2019.08.006 ↗)
- Prostatitis Chronic, Pelvic Chronic Pain – BL28, BL29, KD03 (doi:10.1136/aim.25.4.198 ↗)
- Incontinence Urinary Mixed – SP06, BL23, BL28, BL31, BL32, BL33, BL34, GV04, GV20 (doi:10.1136/acupmed-2015-010828 ↗)
- Bladder Dysfunction Neurogenic, Neurogenic Bladder Post-stroke – BL23, BL24, BL26, BL27, BL28, BL31, BL35, CV03, CV04, CV06, CV08 (doi:10.13702/j.1000-0607.180155 ↗)
- Low Anterior Resection Syndrome – ST25, ST36, ST37, BL23, BL28, BL32, BL33, BL35, CV04, CV06, GV20, XH03 (doi:10.4240/wjgs.v15.i12.2765 ↗)
- Overactive Bladder – SP06, BL27, BL28, BL29, BL30 (doi:10.1159/000488853 ↗)
- Urinary Retention – BL23, BL28, BL32, BL39 (doi:10.1016/s0254-6272(08)60020-5 ↗)
- Low Back Chronic Pain – BL23, BL25, BL28, BL32, BL60, GB30, GB34 (doi:10.1186/1749-8546-5-15 ↗)
- Benign Prostatic Hyperplasia – ST28, BL23, BL28, CV03, CV04, CV08 (pubmed.ncbi.nlm.nih.gov ↗)
Most often selected alongside BL28
How many sourced protocols in the index pair each point with BL28. Corpus frequency, not a combination to use.
- BL23Kidney Shu Point48 protocols
- CV03Central Pivot46 protocols
- SP06Three Yin Intersection44 protocols
- CV04Original Qi Gate30 protocols
- BL32Second Bone Hole22 protocols
- CV06Sea Of Qi22 protocols
- SP09Yin Mound Spring20 protocols
- BL25Large Intestine Shu Point16 protocols
- ST36Leg Three Miles14 protocols
- BL27Small Intestine Shu Point13 protocols
- KD03Great Stream11 protocols
- BL26Original Qi Gate Shu Point10 protocols