# BL21 Weiyu (Stomach Shu Point) – Bladder Meridian

胃俞 · wèi yú

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.

Cautions: Avoid deep perpendicular needling.

Canonical page: https://acuiq.com/points/bl21

## Indications

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

Appetite Strong Unable To Eat, Appetite Strong Unable To Eat, Poor Appetite, Poor Appetite, Benefit Descend Rebellion, Benefit Digestion, Benefit Digestion, Benefit Regulate Jiao Middle, Benefit Regulate Stomach, Stomach Rumbling, Stomach Rumbling, Cold Stomach, Cold Stomach, Contraction Back, Contraction Back, (infant) Nutrition Deficiency, Infantile Nutrition Deficiency, Descend Rebellion, Diarrhea, Turmoil Disorder, Turmoil Disorder, Abdominal Bloating, Abdominal Bloating, Stomach Bloating, Stomach Bloating, Eyesight / Vision Dim, Dim Vision, Fibroids / Masses Ji Abdomen Long Term, Fibroids Masses Ji Abdomen Long Term, Abdominal Fullness, Abdominal Fullness, Costal Lateral Fullness, Costal Lateral Fullness, Epigastrium Fullness, Epigastrium Fullness, Tendon Ligament Contraction Stiffness, Immobility Tendon / Ligament Contraction, Jaundice, Malaria, Edema, Back Pain, Back Pain, Chest Pain, Chest Pain, Upper Stomach Pain, Upper Stomach Pain, Rectal Prolapse, Rectal Prolapse, Reflux Stomach, Reflux Stomach, Regulate Jiao Middle, Regulate Stomach, Undigested Food in Stool, Undigested Food in Stool, Tympanites / Drum Belly, Tympanites Drum Belly, Vomiting, Vomiting Fluid, Vomiting Fluid, Vomiting Milk (infant), Vomiting Milk Infantile, Vomiting Previous Day's Food, Vomiting Previous Day's Food, Weight Low Despite Appetite, Weight Low Despite Appetite

## Most often selected alongside BL21

Sourced protocols in the index pairing each point with this one. Corpus frequency, not a combination to use.

- BL20 (Spleen Shu Point) – 80 protocols
- ST36 (Leg Three Miles) – 74 protocols
- CV12 (Stomach Centre) – 51 protocols
- ST25 (Celestial Pivot) – 37 protocols
- SP06 (Three Yin Intersection) – 36 protocols
- PC06 (Inner Gate) – 31 protocols
- CV04 (Original Qi Gate) – 28 protocols
- LV03 (Great Surge) – 28 protocols

## Protocols using BL21 (50 best-sourced of 107)

| Symptoms | Points | Course | Source | Kind | Caveat |
|---|---|---|---|---|---|
| Nausea, Bloating, Heartburn, Dyspepsia Functional, Abdominal Pain Epigastric, Early Satiety, Postprandial Fullness | BL21, CV12 | 28 days | doi:10.1186/1745-6215-10-75 | trial | Point selection reported in a published study. |
| Nausea, Bloating, Dyspepsia Functional | ST34, ST36, BL21, CV12 | – | doi:10.1155/2012/543943 | trial | Point selection reported in a published study. |
| Anxiety Procedural, Procedural Pain | BL21, BL22, BL23, BL52, GB25 | 1 days | doi:10.1097/j.pain.0000000000000734 | trial | Point selection reported in a published study. |
| Epigastric Pain, Dyspepsia Functional, Burning Epigastric | ST36, ST44, SP09, BL20, BL21, PC06, LV03, LV13, LV14, CV12, CV17 | 14 days | doi:10.1186/s13063-017-1845-3 | trial | Point selection reported in a published study. |
| Hyperglycemia, Prediabetes, Impaired Glucose Tolerance | LI04, ST36, ST37, ST39, ST40, SP06, SP09, BL18, BL20, BL21, LV03, LV13, LV14, CV12, GV09 | 112 days | doi:10.1186/s13063-017-2014-4 | trial | Point selection reported in a published study. |
| Epigastric Pain, Dyspepsia Functional, Postprandial Fullness, Satiety Early, Nausea Postprandial | ST34, ST36, ST40, ST42, BL20, BL21, PC06, CV12 | 70 days | doi:10.1136/bmjopen-2017-018430 | trial | Point selection reported in a published study. |
| 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 | 30 days | doi:10.1155/2020/2367610 | trial | Point selection reported in a published study. |
| Diarrhea, Abdominal Pain, Ulcerative Colitis, Blood In Stool | ST25, ST36, SP04, BL20, BL21, BL23, BL25, KD03, CV04, CV12 | 46 days | doi:10.1186/s12906-020-03101-4 | trial | Point selection reported in a published study. |
| Diarrhea, Abdominal Pain, Ulcerative Colitis, Blood In Stool | ST25, ST36, SP04, BL16, BL20, BL21, BL22, BL25, KD03, CV04, GV02, GV06 | 56 days | doi:10.1186/s12906-020-03101-4 | trial | Point selection reported in a published study. |
| Cancer Gastric, Cancer Advanced, Post-chemotherapy | LU10, ST16, ST36, SP18, BL21, BL23, BL43, GB42, CV12 | 168 days | doi:10.1155/2020/8274021 | trial | Point selection reported in a published study. |
| Abdominal Pain, Postoperative Pain, Post-Operative Nausea, Post-Operative Vomiting, Abdominal Bloating | LI04, ST36, ST37, BL21, BL27, PC06 | 3 days | doi:10.2147/CMAR.S292325 | trial | Point selection reported in a published study. |
| 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 | 22 days | doi:10.1155/2021/6649331 | trial | Point selection reported in a published study. |
| Obesity, Obesity Abdominal, Overweight, Waist Circumference Elevated | LI11, ST24, ST25, ST36, ST40, BL20, BL21, TB06, CV09, CV12 | 112 days | doi:10.1155/2022/4780019 | trial | Point selection reported in a published study. |
| Epigastric Pain, Dyspepsia Functional, Satiety Early, Burning Epigastric, Epigastric Postprandial Bloating | BL21, CV12 | 28 days | doi:10.1155/2022/4824575 | trial | Point selection reported in a published study. |
| 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 | 14 days | doi:10.1155/2022/4251458 | trial | Point selection reported in a published study. |
| 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 | 28 days | doi:10.1186/s12967-023-04250-z | trial | Point selection reported in a published study. |
| Anorectal Pain, Rectal Pain, Anorectal Bloating, Defecation Disorder | ST36, BL20, BL21, BL23, BL34, BL35, BL57, GB26, CV04, CV06, CV12, GV01, GV20 | 60 days | doi:10.1097/MD.0000000000035462 | trial | Point selection reported in a published study. |
| Proteinuria, Nephropathy Diabetic, Renal Function Impaired, Hemorheology Abnormal | SP06, BL13, BL21, BL23, KD03 | 56 days | doi:10.13702/j.1000-0607.20210036 | trial | Point selection reported in a published study. |
| 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 | 280 days | doi:10.7759/cureus.61912 | trial | Point selection reported in a published study. |
| 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 | 70 days | doi:10.7759/cureus.70860 | trial | Point selection reported in a published study. |
| Obesity, Appetite Excessive, Overweight, Appetite Increased | ST25, BL20, BL21, BL25, LV13, CV12 | 84 days | doi:10.2147/DMSO.S487877 | trial | Point selection reported in a published study. |
| 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 | 84 days | doi:10.7759/cureus.74385 | trial | Point selection reported in a published study. |
| Knee Pain, Osteoarthritis Knee, Stiffness Knee | ST34, BL19, BL21, BL23, BL25, BL27, BL40 | 84 days | doi:10.1186/s12906-025-04891-1 | trial | Point selection reported in a published study. |
| 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 | 70 days | doi:10.1186/s13052-015-0155-1 | trial | Point selection reported in a published study. |
| Hyperglycemia, Insulin Resistance, Type 2 Diabetes | LI04, LI11, ST36, SP06, SP09, SP10, BL13, BL17, BL20, BL21, BL22, BL23, BL52, KD03, CV04, CV06, CV12 | 27 days | doi:10.3892/etm.2017.4379 | trial | Point selection reported in a published study. |
| Lactation Insufficiency, Breastfeeding Postpartum | ST18, ST36, SP06, SP10, SI01, BL20, BL21, PC06, LV03, LV14, CV06, CV17 | 3 days | doi:10.22038/ijp.2020.54458.4305 | trial | Point selection reported in a published study. |
| Lactation Insufficiency, Breastfeeding Postpartum | ST18, ST36, SI01, BL18, BL20, BL21, LV03, LV14, CV12, CV17, GV14 | 8 days | doi:10.22038/ijp.2020.54458.4305 | trial | Point selection reported in a published study. |
| Lactation Insufficiency, Breastfeeding Postpartum | LU01, LI04, ST17, ST18, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV17 | 4 days | doi:10.22038/ijp.2020.54458.4305 | trial | Point selection reported in a published study. |
| Lactation Insufficiency, Breastfeeding Postpartum | LI04, ST11, ST17, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV16, CV17 | 5 days | doi:10.22038/ijp.2020.54458.4305 | trial | Point selection reported in a published study. |
| Vomiting, Nausea, Chemotherapy Nausea, Stomach Yin Deficiency | ST36, SP04, BL21, KD06, PC06, CV04, CV12 | 30 days | doi:10.1177/2164956119870444 | trial | Point selection reported in a published study. |
| Cancer Pain, Constipation Opioid-induced | BL18, BL19, BL20, BL21, CV12 | – | doi:10.3390/jcm12155083 | trial | Point selection reported in a published study. |
| Nasal Congestion, Allergic Rhinitis, Sneezing, Nasal Itching, Rhinorrhea Clear | ST36, BL12, BL20, BL21 | – | doi:10.1016/j.heliyon.2024.e29262 | trial | Point selection reported in a published study. |
| Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum | ST18, ST36, SP06, SP10, SI01, BL20, BL21, PC06, LV03, LV14, CV06, CV17 | 3 days | doi:10.1186/s13643-025-02773-8 | trial | Point selection reported in a published study. |
| Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum | ST18, SI01, BL18, BL20, BL21, CV17, GV14 | 8 days | doi:10.1186/s13643-025-02773-8 | trial | Point selection reported in a published study. |
| Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum | LU01, LI04, ST17, ST18, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV17 | 4 days | doi:10.1186/s13643-025-02773-8 | trial | Point selection reported in a published study. |
| Hypogalactia, Breastfeeding Insufficiency, Lactation Postpartum | LI04, ST11, ST17, SP20, SI01, BL17, BL18, BL20, BL21, GB21, CV16, CV17 | 5 days | doi:10.1186/s13643-025-02773-8 | trial | Point selection reported in a published study. |
| Abdominal Distension, Gastrointestinal Dysfunction, Constipation Postoperative | ST25, ST36, BL20, BL21, BL23, BL25, TB06, CV04, CV06, CV12, GV01 | 3 days | doi:10.1136/bmjopen-2025-108309 | trial | Point selection reported in a published study. |
| Heartburn, Regurgitation, Reflux Gastroesophageal | ST36, BL21, CV12 | 30 days | doi:10.13181/mji.v28i3.1850 | trial | Point selection reported in a published study. |
| Nausea, Bloating, Epigastric Pain, Dyspepsia Functional | ST25, ST36, ST44, SP04, SP09, BL20, BL21, PC06, LV03, CV12 | – | doi:10.1016/j.dcmed.2024.01.001 | trial | Point selection reported in a published study. |
| Epigastric Pain | ST36, SP04, BL20, BL21, PC06, CV12, CV13 | – | doi:10.13703/j.0255-2930.20240904-k0002 | trial | Point selection reported in a published study. |
| Insomnia, Speech Slurred, Dysphagia, Lower Limb Weakness, Breathlessness, Nasal Regurgitation, Ptosis Eye Left, Weight Loss Gradual, Fatigue Generalized | LI04, SP03, BL20, BL21, GB20, GV20 | 28 days | doi:10.13045/jar.24.0052 | trial | Point selection reported in a published study. |
| Gastric Mucosal Injury Stress-induced | ST36, BL20, BL21, CV12 | 8 days | doi:10.13193/j.issn.1673-7717.2015.09.005 | trial | Point selection reported in a published study. |
| Peptic Ulcer, Epigastric Pain | ST36, BL20, BL21, CV12 | – | doi:10.27294/d.cnki.gsxzc.2023.000054 | trial | Point selection reported in a published study. |
| Lumbar Pain, Lower Limb Pain, Lower Limb Numbness | ST26, SP11, BL21, GB26, GB27 | – | doi:10.13192/j.issn.1000-1719.2023.05.059 | trial | Point selection reported in a published study. |
| Spleen-qi Deficiency, Allergic Disease, Middle-qi Deficiency | BL20, BL21, LV13, CV12 | – | doi:10.13463/j.cnki.cczyy.2025.11.009 | trial | Point selection reported in a published study. |
| 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 | trial | Point selection reported in a published study. |
| Stomach Pain, Gastric Pain | LU10, SP05, BL13, BL21 | – | doi:10.13457/j.cnki.jncm.2025.08.020 | trial | Point selection reported in a published study. |
| Gastric Ulcer, Mucosal Erosion | ST36, BL20, BL21 | – | doi:10.13703/j.0255-2930.1994.04.027 | trial | Point selection reported in a published study. |
| Epigastric Pain, Cold Spleen-stomach Deficiency | ST36, BL20, BL21, PC06, CV04, CV12 | 27 days | doi:10.27127/d.cnki.ghlzu.2023.000698 | trial | Point selection reported in a published study. |
| Diarrhea, Digestive Disorder Soft Stool, Soft Stool | BL20, BL21 | – | doi:10.27327/d.cnki.gshnu.2025.001669 | trial | Point selection reported in a published study. |

---

AcuiQ-authored prose (symptom and meridian descriptions, the wiki, the auricular crosswalk) is licensed CC-BY-4.0: https://creativecommons.org/licenses/by/4.0/. The assembled protocol compilation is not: build on it with attribution, but do not redistribute it whole as a dataset – https://acuiq.com/terms. The underlying findings are the cited sources' claims – each entry carries its citation; verify against the source before relying on it. Not medical advice: https://acuiq.com/terms