# BL66 Zutonggu (Foot Valley Passage) – Bladder Meridian

足通谷 · zú tōng gǔ

Location: Anterior to the 5th metatarsophalangeal joint at the junction of the red and white skin.

Cautions: No specific contraindications.

Canonical page: https://acuiq.com/points/bl66

## Indications

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

Benefit Descend Qi Lung, Benefit Descend Qi Stomach, Benefit Head, Benefit Head, Congestion Fluids, Congestion Fluids, Cough, Descend Qi Lung, Descend Qi Stomach, Psychological Disorder, Psychological Disorder, Shortness of Breath, Eyesight / Vision Dizzy, Dizzy Vision, Fright, Chest Fullness, Chest Fullness, Malaria, Nosebleed, Neck Pain, Neck Pain, Red Eyes, Red Eyes, Heaviness Head Sensation, Heaviness Head Sensation, Undigested Food in Stool, Undigested Food in Stool, Sweating, Tolerance Cold, Tolerance Cold, Vomiting

## Most often selected alongside BL66

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

- GB41 (Foot Governor Of Tears) – 5 protocols
- SI02 (Front Valley) – 5 protocols
- SI03 (Back Stream) – 5 protocols
- CV12 (Stomach Centre) – 4 protocols
- LU08 (Channels Ditch) – 4 protocols
- SP03 (Great White) – 4 protocols
- ST36 (Leg Three Miles) – 4 protocols
- KD10 (Yin Valley) – 3 protocols

## Protocols using BL66

| Symptoms | Points | Course | Source | Kind | Caveat |
|---|---|---|---|---|---|
| Knee Pain, Osteoarthritis Knee, Gallbladder Deficiency | LI01, ST35, SP09, BL39, BL66, GB43, GB44 | 42 days | doi:10.1186/1745-6215-14-129 | trial | Point selection reported in a published study. |
| Immune Deficiency, Fatigue Cancer | LU08, SI05, BL66, TB04, CV12 | 14 days | doi:10.1155/2015/703439 | trial | Point selection reported in a published study. |
| Fatigue, Cancer, Immune Deficiency | LU08, SI05, BL66, TB04, CV12 | 14 days | doi:10.1016/s0254-6272(15)30061-3 | trial | Point selection reported in a published study. |
| Pruritus, Dermatitis Atopic, Sleep Disturbance, Skin Eczema | LI02, LI11, ST36, ST43, SP03, SI02, SI03, BL66, PC06, TB03, TB06, GB41, LV03 | 28 days | doi:10.1155/2017/1926806 | trial | Point selection reported in a published study. |
| Dyspepsia, Pruritus, Dermatitis Atopic, Skin Dryness, Skin Erythema | LI02, LI11, ST36, ST43, SP03, SI02, SI03, BL66, PC06, TB03, TB06, GB41, LV03 | 28 days | doi:10.1155/2019/1907578 | trial | Point selection reported in a published study. |
| Insomnia, Eczema, Dyspepsia, Pruritus, Dermatitis Atopic | LI02, LI11, ST36, ST43, SP03, SI02, SI03, BL66, PC06, TB03, TB06, GB41, LV03 | 28 days | doi:10.1186/s12906-021-03306-1 | trial | Point selection reported in a published study. |
| Diarrhea, Dyspepsia Functional, Irritable Bowel Syndrome, Bloating Abdominal, Satiation Early, Tightness Epigastric | LU05, LU11, HT03, HT09, SI02, SI03, BL66, KD10, GB41, LV01 | 31 days | doi:10.3389/fmed.2025.1545687 | trial | Point selection reported in a published study. |
| Dyspepsia Functional | LU08, LI01, SP05, SP09, BL66, KD10, GB43, GB44, LV04, LV08 | – | doi:10.3389/fmed.2025.1545687 | trial | Point selection reported in a published study. |
| Parkinson's Disease, Cognitive Impairment Mild | ST36, SP03, HT08, BL62, BL66, KD03, KD06, PC08, CV12, CV14, GV20, GV23, GV24, XH03 | 90 days | doi:10.27126/d.cnki.ghlzy.2025.000006 | trial | Point selection reported in a published study. |
| Dyspepsia Functional | LU05, LU11, HT03, HT09, SI02, SI03, BL66, KD10, GB41, LV01 | – | doi:10.3389/fmed.2025.1545687 | trial | Point selection reported in a published study. |
| Fatigue, Cancer, Immunodeficiency | LU08, SI05, BL66, TB04, CV12 | 14 days | Kim DJ, Park SH, Seo JC, Kim KS, Sohn KC, Shin IH, Ryoo HM. Efficacy of Saam acupuncture treatment on improvement of immune cell numbers in cancer patients: a pilot study. J Tradit Chin Med 2014; 34(5): 550-554 | text | Point selection recorded in a clinical text or case report. |

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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