BL22 Sanjiaoyu (Sanjiao Shu Point)

Location

1.5 thumb widths lateral to the GV05 at the level of the lower border of the spinous process of the 1st lumbar vertebra.

Indications

Conditions for which BL22 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

Protocols using BL22

• Dysmenorrhea, Menstrual Pain, Mood Changes, Damp-heat Lower-jiao – LI11, ST28, ST29, ST40, SP06, SP09, BL22, BL32, GB34, LV02 (doi:10.1093/ecam/nep239 ↗)
• Anxiety Procedural, Procedural Pain – BL21, BL22, BL23, BL52, GB25 (doi:10.1097/j.pain.0000000000000734 ↗)
• Back Low Pain, Claudication Neurogenic, Leg Radiating Pain, Spondylolisthesis Lumbar Degenerative – LI04, ST36, BL22, BL23, BL24, BL25, LV03 (doi:10.1097/MD.0000000000010667 ↗)
• Diarrhea, Abdominal Pain, Ulcerative Colitis, Blood In Stool – ST25, ST36, SP04, BL16, BL20, BL21, BL22, BL25, KD03, CV04, GV02, GV06 (doi:10.1186/s12906-020-03101-4 ↗)
• Anxiety, Stool Loose, Menstruation Irregular, Vision Visual Field Defect, Vision Blind Spot, Neck Myofascial Pain – LI04, LI10, ST36, SP03, SP06, SP09, SP10, HT08, SI03, SI13, BL10, BL18, BL20, BL22, BL23, BL65, PC06, PC07, GB20, GB21, GB34, LV03, GV14, GV20, MS14 (doi:10.1177/21649561211021081 ↗)
• Tremor, Parkinson's Disease, Low Back Pain, Bradykinesia, Postural Deformity Pisa Syndrome, Scoliosis Lateral Trunk Flexion, Muscle Rigidity Paraspinal – BL22, BL23, BL24, BL25 (doi:10.12998/wjcc.v10.i30.11023 ↗)
• Leg Numbness, Lumbar Pain, Back Low Pain, Lower-limb Pain, Lower-limb Numbness, Disc-herniation Lumbar, Herniation Disc Lumbar – SP06, BL22, BL23, BL24, BL25, BL26, BL40, KD03, GB30 (doi:10.12998/wjcc.v11.i10.2308 ↗)
• Headache, Sore Throat, Joint Pain, Muscle Pain, Fatigue Chronic, Sleep Unrefreshing, Memory Impaired, Fatigue Post-exertional, Cold Intolerance, Concentration Impaired, Yang Deficiency Spleen-kidney, Lumbar Weakness – BL11, BL13, BL14, BL15, BL17, BL18, BL19, BL20, BL21, BL22, BL23, BL25, GV02, GV03, GV04, GV05, GV06, GV07, GV08, GV09, GV10, GV11, GV12, GV13, GV14 (doi:10.1186/s12967-023-04250-z ↗)
• Fatigue, Constipation, Insomnia, Weight Loss, Eating Disorder Arfid, Food Avoidance, Abdominal Bloating, Taste Disturbance, Tongue Pain – LI04, ST19, ST20, ST24, ST25, ST36, ST40, SP04, SP06, HT07, SI03, BL15, BL19, BL20, BL21, BL22, KD06, PC06, GV20 (doi:10.7759/cureus.61912 ↗)
• Sciatica, Lumbago, Leg Pain, Lower Back Pain – BL22, BL23, BL24, BL25, BL52, GV03, GV04, GV05 (doi:10.3831/KPI.2012.15.006 ↗)
• Contracture Knee, Brachial Plexus Injury, Muscle Atrophy, Paralysis Upper Extremity, Paralysis Lower Extremity, Contracture Ankle, Contracture Shoulder, Contracture Elbow, Scoliosis, Neuromotor Impairment, Steppage Gait – LU01, LI04, LI05, LI11, LI14, ST34, ST36, ST41, SP09, SP10, SI05, SI06, SI07, SI09, BL11, BL12, BL22, BL23, BL24, BL25, BL26, BL36, BL37, BL39, BL55, BL56, BL57, BL58, BL60, BL61, BL62, KD03, KD04, KD05, KD06, TB09, GB20, GB21, GB40 (doi:10.3831/KPI.2013.16.009 ↗)
• Hyperglycemia, Insulin Resistance, Type 2 Diabetes – LI04, LI11, ST36, SP06, SP09, SP10, BL13, BL17, BL20, BL21, BL22, BL23, BL52, KD03, CV04, CV06, CV12 (doi:10.3892/etm.2017.4379 ↗)
• Leg Pain, Buttock Pain, Low Back Pain, Mobility Reduced, Spinal Stenosis Lumbar, Neurogenic Claudication – ST36, ST40, BL22, BL23, BL24, BL25, BL26, BL53, BL54, GB30, GB31, GB34, LV03, GV03, GV04, GV05 (doi:10.1016/j.imr.2025.101204 ↗)
• 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 ↗)
• Urinary Retention Post-stroke – SP06, SP09, BL22, BL23, BL28, BL67, KD03, CV03, CV04, CV06 (doi:10.13048/jkm.16001 ↗)
• Lumbar Pain, Low Back Pain – BL22, BL23, BL24, BL25, BL26 (doi:10.15294/kemas.v16i2.22650 ↗)
• 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 ↗)
• Parkinson's Disease, Postural Deformity Pisa Syndrome, Pisa Syndrome – BL22, BL23, BL24, BL25 (doi:10.12998/wjcc.v10.i30.11023 ↗)
• Visual Field Defect, Neck Pain – LI04, LI10, ST36, SP03, SP06, SP09, SP10, HT08, SI03, SI13, BL10, BL18, BL20, BL22, BL23, BL65, PC06, PC07, GB20, GB34, LV03, GV14, GV20, MS14 (doi:10.1177/21649561211021081 ↗)
• Insomnia, Weight Loss, Bloating Abdominal, Eating Disorder Arfid – LI04, ST19, ST20, ST24, ST25, ST36, ST40, SP04, SP06, HT07, SI03, BL15, BL19, BL20, BL21, BL22, KD06, PC06 (doi:10.7759/cureus.61912 ↗)
• Leg Pain, Low Back Pain, Spinal Stenosis Lumbar Degenerative, Claudication Neurogenic – ST36, ST40, BL22, BL23, BL24, BL25, BL26, BL53, BL54, GB30, GB31, GB34, LV03, GV03, GV04, GV05, XB02L1, XB02L2, XB02L3, XB02L4, XB02L5 (doi:10.1016/j.imr.2025.101204 ↗)
• Damp – SP03, SP06, SP09, BL20, BL22, BL23, LV13, CV04, CV06 (Deadman, Al-Khafaji & Baker, A Manual of Acupuncture – point group actions)
• Ooedema – LU07, LI04, SP06, SP09, BL22, BL23, KD03, KD07, CV09 (Deadman, Al-Khafaji & Baker, A Manual of Acupuncture – point group actions)
• 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)
• Heat Stomach, Damp Spleen, Damp Stomach, Heat Spleen, Heat Stomach, Damp Spleen, Damp Stomach, Heat Spleen – ST22, ST44, SP02, SP04, BL18, BL20, BL22 (Yang Yong-Xuan, clinical point-selection notes)
• Damp Stomach, Damp Stomach – ST30, ST40, SP04, BL22 (Yang Yong-Xuan, clinical point-selection notes)
• Stomach Food Stagnation, Stomach Food Stagnation – ST30, ST34, ST37, BL21, BL22, KD18, KD21 (Yang Yong-Xuan, clinical point-selection notes)
• Renal Colic Pain – BL21, BL22, BL23, BL24, BL26, BL45, BL46, BL47, BL48, BL49 (Acupuncture Versus Titrated Morphine in Patients With Renal Colic. ClinicalTrials.gov NCT02781415)
• Eczema, Atopic Dermatitis, Eczema Atopic, Pruritus Skin – LI11, ST25, ST36, SP10, BL13, BL15, BL17, BL19, BL22, BL40, CV12, GV14 (刘悦汤晓冬李伟红 翟舒婕余洋. 基于Apriori算法的针灸治疗特应性皮炎选取腧穴规律研究. 河北医学 ., 2023 [CNKI])

Most often selected alongside BL22

How many sourced protocols in the index pair each point with BL22. Corpus frequency, not a combination to use.

• BL23Kidney Shu Point20 protocols
• BL25Large Intestine Shu Point12 protocols
• ST36Leg Three Miles12 protocols
• BL24Sea Of Qi Shu Point11 protocols
• SP06Three Yin Intersection11 protocols
• BL20Spleen Shu Point9 protocols
• LI04Junction Valley9 protocols
• SP09Yin Mound Spring9 protocols
• BL21Stomach Shu Point8 protocols
• BL26Original Qi Gate Shu Point7 protocols
• KD03Great Stream7 protocols
• LV03Great Surge6 protocols

Other points on the Bladder Meridian