BL21 Weishu (Stomach Shu Point)

胃俞wèi shūWeishu

Bladder Meridian

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Location of acupuncture point BL21 Weishu (Stomach Shu Point)
37
Indications
117
Protocols
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Location

1.5 thumb widths lateral to the du mai at the level of the lower border of the spinous process of the 12th thoracic vertebra.

Categories

  • Back-Shu point of the Stomach

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 BL21 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

Appetite Strong Unable To EatPoor AppetiteStomach RumblingCold StomachContraction Back(infant) Nutrition DeficiencyInfantile Nutrition DeficiencyDiarrheaTurmoil DisorderAbdominal BloatingStomach BloatingEyesight / Vision DimDim VisionFibroids / Masses Ji Abdomen Long TermFibroids Masses Ji Abdomen Long TermAbdominal FullnessCostal Lateral FullnessEpigastrium FullnessTendon Ligament Contraction StiffnessImmobility Tendon / Ligament ContractionJaundiceMalariaEdemaBack PainChest PainUpper Stomach PainRectal ProlapseReflux StomachUndigested Food in StoolTympanites / Drum BellyTympanites Drum BellyVomitingVomiting FluidVomiting Milk (infant)Vomiting Milk InfantileVomiting Previous Day's FoodWeight Low Despite Appetite

TCM actions

What classical sources say BL21 does in the terms of Chinese medicine theory. These describe the point, not a condition.

Benefit Descend RebellionBenefit DigestionBenefit Regulate Jiao MiddleBenefit Regulate StomachDescend RebellionRegulate Jiao MiddleRegulate Stomach

Protocols using BL21

The 50 best-sourced of 117, ranked by strength of evidence. The count above is the full figure.

  • Fatigue, Dizziness, Headache, Depression, Lassitude, Knee Pain, Head Vertex Pain, Dyspnea, Heaviness Lower Limbs, Lower Back Pain – LI04, ST36, SP06, HT07, BL15, BL17, BL18, BL20, BL21, BL23, BL26, KD03, PC06, GB20, LV03, CV06, CV12, GV20, GV24 (pubmed.ncbi.nlm.nih.gov ↗)
  • Insomnia – ST25, ST36, ST40, SP06, SP09, HT07, BL14, BL15, BL18, BL20, BL21, BL23, KD03, PC06, GB20, GB41, LV03, CV04, CV06, CV12, CV17, GV20, GV23, GV24 (doi:10.1016/s0254-6272(09)60009-1 ↗)
  • Cough Chronic – LI04, BL13, BL20, BL21, CV12, CV17, CV22 (doi:10.1016/s0254-6272(09)60022-4 ↗)
  • Sputum, Cough Chronic, Appetite Poor – LI04, BL13, BL20, BL21, CV17, CV22 (doi:10.1016/s0254-6272(09)60022-4 ↗)
  • Nausea, Bloating, Heartburn, Dyspepsia Functional, Abdominal Pain Epigastric, Early Satiety, Postprandial Fullness – BL21, CV12 (doi:10.1186/1745-6215-10-75 ↗)
  • Nausea, Bloating, Dyspepsia Functional – ST34, ST36, BL21, CV12 (doi:10.1155/2012/543943 ↗)
  • Anxiety Procedural, Procedural Pain – BL21, BL22, BL23, BL52, GB25 (doi:10.1097/j.pain.0000000000000734 ↗)
  • Epigastric Pain, Dyspepsia Functional, Burning Epigastric – ST36, ST44, SP09, BL20, BL21, PC06, LV03, LV13, LV14, CV12, CV17 (doi:10.1186/s13063-017-1845-3 ↗)
  • Hyperglycemia, Prediabetes, Impaired Glucose Tolerance – LI04, ST36, ST37, ST39, ST40, SP06, SP09, BL18, BL20, BL21, LV03, LV13, LV14, CV12, GV09 (doi:10.1186/s13063-017-2014-4 ↗)
  • Epigastric Pain, Dyspepsia Functional, Postprandial Fullness, Satiety Early, Nausea Postprandial – ST34, ST36, ST40, ST42, BL20, BL21, PC06, CV12 (doi:10.1136/bmjopen-2017-018430 ↗)
  • Overweight, Obesity Simple, Bmi Elevated – LI04, LI11, ST21, ST24, ST25, ST26, ST27, ST28, ST32, ST34, ST36, ST37, ST39, ST40, ST44, SP04, SP06, SP09, SP14, SP15, SP16, BL20, BL21, TB06, GB26, LV13, CV04, CV06, CV07, CV09, CV10, CV12, CV13 (doi:10.1155/2020/2367610 ↗)
  • Diarrhea, Abdominal Pain, Ulcerative Colitis, Blood In Stool – ST25, ST36, SP04, BL20, BL21, BL23, BL25, KD03, CV04, CV12 (doi:10.1186/s12906-020-03101-4 ↗)
  • 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 ↗)
  • Cancer Gastric, Cancer Advanced, Post-chemotherapy – LU10, ST16, ST36, SP18, BL21, BL23, BL43, GB42, CV12 (doi:10.1155/2020/8274021 ↗)
  • Abdominal Pain, Postoperative Pain, Post-Operative Nausea, Post-Operative Vomiting, Abdominal Bloating – LI04, ST36, ST37, BL21, BL27, PC06 (doi:10.2147/CMAR.S292325 ↗)
  • Vomiting, Nausea, Abdominal Pain, Abdominal Bloating, Postprandial Fullness, Satiety Early, Gastroparesis Diabetic, Loss Of Appetite – ST21, ST25, ST36, SP06, BL18, BL20, BL21, BL23, PC06, CV12 (doi:10.1155/2021/6649331 ↗)
  • Obesity, Obesity Abdominal, Overweight, Waist Circumference Elevated – LI11, ST24, ST25, ST36, ST40, BL20, BL21, TB06, CV09, CV12 (doi:10.1155/2022/4780019 ↗)
  • Epigastric Pain, Dyspepsia Functional, Satiety Early, Burning Epigastric, Epigastric Postprandial Bloating – BL21, CV12 (doi:10.1155/2022/4824575 ↗)
  • Loss of Appetite, Chemotherapy Nausea, Fatigue Cancer, Anorexia Cancer-associated – LI04, LI11, ST25, ST36, ST37, SP06, SP09, HT07, BL20, BL21, BL23, PC06, CV04, CV06, CV12, GV20 (doi:10.1155/2022/4251458 ↗)
  • 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 ↗)
  • Anorectal Pain, Rectal Pain, Anorectal Bloating, Defecation Disorder – ST36, BL20, BL21, BL23, BL34, BL35, BL57, GB26, CV04, CV06, CV12, GV01, GV20 (doi:10.1097/MD.0000000000035462 ↗)
  • Proteinuria, Nephropathy Diabetic, Renal Function Impaired, Hemorheology Abnormal – SP06, BL13, BL21, BL23, KD03 (doi:10.13702/j.1000-0607.20210036 ↗)
  • 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 ↗)
  • Parkinson's Disease, Bradykinesia, Rigidity Muscular, Posture Forward, Posture Lateral Trunk Bending, Dysphasia, Micrographia, Pisa Syndrome – ST40, SI03, BL21, BL62, KD06, LV03, LV08, LV13, GV20 (doi:10.7759/cureus.70860 ↗)
  • Obesity, Appetite Excessive, Overweight, Appetite Increased – ST25, BL20, BL21, BL25, LV13, CV12 (doi:10.2147/DMSO.S487877 ↗)
  • Anxiety, Fibromyalgia, Whole-body Pain, Mood Depressive – ST25, ST27, ST36, SP04, SP06, HT07, SI03, BL16, BL18, BL19, BL20, BL21, BL23, BL62, KD03, KD06, TB05, LV03, LV08 (doi:10.7759/cureus.74385 ↗)
  • Knee Pain, Osteoarthritis Knee, Stiffness Knee – ST34, BL19, BL21, BL23, BL25, BL27, BL40 (doi:10.1186/s12906-025-04891-1 ↗)
  • Airway Hyperresponsiveness, Asthma Intermittent, Asthma Mild – LU01, LU05, LU07, LU09, LU11, LI04, LI06, LI20, ST13, ST25, ST36, ST40, ST44, SP03, SP06, SP09, SP10, HT03, HT05, HT07, SI03, BL13, BL17, BL18, BL20, BL21, BL23, KD03, KD06, KD08, KD27, PC06, TB05, TB15, GB03, GB34, GB40, GB41, LV02, LV03, LV08, LV13, CV04, CV06, CV09, CV17, CV21, GV04, GV13 (doi:10.1186/s13052-015-0155-1 ↗)
  • 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 ↗)
  • Lactation Insufficiency, Breastfeeding Postpartum – ST18, ST36, SP06, SP10, SI01, BL20, BL21, PC06, LV03, LV14, CV06, CV17 (doi:10.22038/ijp.2020.54458.4305 ↗)
  • Lactation Insufficiency, Breastfeeding Postpartum – ST18, ST36, SI01, BL18, BL20, BL21, LV03, LV14, CV12, CV17, GV14 (doi:10.22038/ijp.2020.54458.4305 ↗)
  • Lactation Insufficiency, Breastfeeding Postpartum – LU01, LI04, ST17, ST18, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV17 (doi:10.22038/ijp.2020.54458.4305 ↗)
  • Lactation Insufficiency, Breastfeeding Postpartum – LI04, ST11, ST17, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV16, CV17 (doi:10.22038/ijp.2020.54458.4305 ↗)
  • Vomiting, Nausea, Chemotherapy Nausea, Stomach Yin Deficiency – ST36, SP04, BL21, KD06, PC06, CV04, CV12 (doi:10.1177/2164956119870444 ↗)
  • Cancer Pain, Constipation Opioid-induced – BL18, BL19, BL20, BL21, CV12 (doi:10.3390/jcm12155083 ↗)
  • Nasal Congestion, Allergic Rhinitis, Sneezing, Nasal Itching, Rhinorrhea Clear – ST36, BL12, BL20, BL21 (doi:10.1016/j.heliyon.2024.e29262 ↗)
  • Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum – ST18, ST36, SP06, SP10, SI01, BL20, BL21, PC06, LV03, LV14, CV06, CV17 (doi:10.1186/s13643-025-02773-8 ↗)
  • Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum – ST18, SI01, BL18, BL20, BL21, CV17, GV14 (doi:10.1186/s13643-025-02773-8 ↗)
  • Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum – LU01, LI04, ST17, ST18, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV17 (doi:10.1186/s13643-025-02773-8 ↗)
  • Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum – LI04, ST11, ST17, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV16, CV17 (doi:10.1186/s13643-025-02773-8 ↗)
  • Abdominal Distension, Gastrointestinal Dysfunction, Constipation Postoperative – ST25, ST36, BL20, BL21, BL23, BL25, TB06, CV04, CV06, CV12, GV01 (doi:10.1136/bmjopen-2025-108309 ↗)
  • Heartburn, Regurgitation, Gastroesophageal Reflux Disease (GERD) – ST36, BL21, CV12 (doi:10.13181/mji.v28i3.1850 ↗)
  • Nausea, Bloating, Epigastric Pain, Dyspepsia Functional – ST25, ST36, ST44, SP04, SP09, BL20, BL21, PC06, LV03, CV12 (doi:10.1016/j.dcmed.2024.01.001 ↗)
  • Epigastric Pain – ST36, SP04, BL20, BL21, PC06, CV12, CV13 (doi:10.13703/j.0255-2930.20240904-k0002 ↗)
  • Insomnia, Speech Slurred, Dysphagia, Lower Limb Weakness, Breathlessness, Nasal Regurgitation, Ptosis Eye Left, Weight Loss Gradual, Fatigue Generalized – LI04, SP03, BL20, BL21, GB20, GV20 (doi:10.13045/jar.24.0052 ↗)
  • Gastric Mucosal Injury Stress-induced – ST36, BL20, BL21, CV12 (doi:10.13193/j.issn.1673-7717.2015.09.005 ↗)
  • Peptic Ulcer, Epigastric Pain – ST36, BL20, BL21, CV12 (doi:10.27294/d.cnki.gsxzc.2023.000054 ↗)
  • Lumbar Pain, Lower Limb Pain, Lower Limb Numbness – ST26, SP11, BL21, GB26, GB27 (doi:10.13192/j.issn.1000-1719.2023.05.059 ↗)
  • Spleen-qi Deficiency, Allergic Disease, Middle-qi Deficiency – BL20, BL21, LV13, CV12 (doi:10.13463/j.cnki.cczyy.2025.11.009 ↗)
  • Intestinal Obstruction Postoperative Inflammatory Early – ST25, ST36, ST37, ST39, SP15, BL20, BL21, BL25, PC06, TB06, LV03, CV04, CV06, CV12 (doi:10.19613/j.cnki.1671-3141.2019.76.008 ↗)

Most often selected alongside BL21

How many sourced protocols in the index pair each point with BL21. Corpus frequency, not a combination to use.

  • BL20Spleen Shu Point86 protocols
  • ST36Leg Three Miles81 protocols
  • CV12Stomach Centre58 protocols
  • SP06Three Yin Intersection38 protocols
  • ST25Celestial Pivot38 protocols
  • PC06Inner Gate34 protocols
  • BL23Kidney Shu Point31 protocols
  • LV03Great Surge30 protocols
  • CV04Original Qi Gate29 protocols
  • BL18Liver Shu Point28 protocols
  • LI04Junction Valley26 protocols
  • CV06Sea Of Qi22 protocols

Other points on the Bladder Meridian

BL01BL02BL03BL04BL05BL06BL07BL08BL09BL10BL11BL12BL13BL14BL15BL16BL17BL18BL19BL20BL22BL23BL24BL25BL26BL27BL28BL29BL30BL31BL32BL33BL34BL35BL36BL37BL38BL39BL40BL41BL42BL43BL44BL45BL46BL47BL48BL49BL50BL51BL52BL53BL54BL55BL56BL57BL58BL59BL60BL61BL62BL63BL64BL65BL66BL67