# BL56 Chengjin (Sinew Support) – Bladder Meridian

承筋 · chéng jīn

Location: On the line connecting BL40 and BL57 in the center of the belly of the gastrocnemius 5 thumb widths below BL40.

Cautions: Caution in severe varicose veins.

Canonical page: https://acuiq.com/points/bl56

## Indications

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

Benefit Foot, Benefit Foot, Benefit Heels, Benefit Heels, Constipation, Contraction Foot, Contraction Foot, Contraction Heel, Contraction Heel, Contraction Spine Lumbar, Contraction Spine Lumbar, Cramping, Turmoil Disorder, Turmoil Disorder, Dizziness, Hemorrhoids, Heat Head, Heat Head, Standing Stiffness, Tendon Ligament Stiffness, Immobility Standing, Immobility Tendon / Ligament, Incontinence Bladder, Incontinence Bladder, Incontinence Bowels, Incontinence Bowels, Nosebleed, Pain, Achilles Tendon On Running Pain, Achilles Tendon On Running Pain, Foot On Running Pain, Foot On Running Pain, Headache, Headache, Lumbar Spine Pain, Lumbar Spine Pain, Rhinitis, Heat Soles Of Feet Sensation, Heat Soles Of Feet Sensation, Shivering, Muscle Spasms, Muscle Spasms, Channel Stagnation, Channel Stagnation, Armpit Swelling, Armpit Swelling, Bi Arthralgia Leg Inferior Syndrome, Bi / Arthralgia Leg Inferior Syndrome, Hives

## Most often selected alongside BL56

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

- BL57 (Mountain Support) – 7 protocols
- ST36 (Leg Three Miles) – 4 protocols
- BL23 (Kidney Shu Point) – 3 protocols
- BL40 (Middle Of The Crease) – 3 protocols
- CV06 (Sea Of Qi) – 3 protocols
- GB20 (Wind Pool) – 3 protocols
- GB21 (Shoulder Well) – 3 protocols
- GB34 (Yang Mound Spring) – 3 protocols

## Protocols using BL56

| Symptoms | Points | Course | Source | Kind | Caveat |
|---|---|---|---|---|---|
| Leg Pain, Low-back Pain, Spinal-stenosis Lumbar, Claudication Neurological | SP06, SP09, BL23, BL25, BL56, BL57, GB30, GB34, GB39, GV03, GV04 | 29 days | doi:10.1155/2015/263898 | trial | Point selection reported in a published study. |
| Anxiety, Palpitations, Depression, Insomnia, Anger, Back Pain, Irritability, Memory Impairment | BL40, BL56, BL57, GB20, GB21, CV06, CV12, CV17 | 28 days | doi:10.3831/KPI.2017.20.018 | trial | Point selection reported in a published study. |
| Anxiety, Palpitations, Insomnia, Anger, Back Pain, Neck Pain, Irritability | BL40, BL56, BL57, GB20, GB21, CV06, CV12, CV17 | 28 days | doi:10.3831/KPI.2017.20.018 | trial | Point selection reported in a published study. |
| Sleep Disturbance, Restless Legs Syndrome, Lower Limb Abnormal Sensation | ST34, ST36, SP05, SP06, SP10, BL18, BL23, BL56, BL57, BL64, KD03, GB34, GB39 | 10 days | doi:10.1016/j.bj.2021.05.005 | trial | Point selection reported in a published study. |
| 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 | 10 days | doi:10.3831/KPI.2013.16.009 | trial | Point selection reported in a published study. |
| Parkinson's Disease, Leg Pain, Rigidity | BL56, BL57 | 7 days | doi:10.1155/padi/9860808 | trial | Point selection reported in a published study. |
| Spasm Gastrocnemius Muscle, Spasm Gastrocnemius Muscle | BL56, BL57, BL60, GB34 | 7 days | Deadman, Al-Khafaji & Baker, A Manual of Acupuncture – point group actions | text | Point selection recorded in a clinical text or case report. |
| Motor Dysfunction, Spinal Cord Injury, Paralysis Paraplegia | ST32, ST33, ST34, ST36, ST40, ST41, ST42, ST43, BL37, BL39, BL40, BL55, BL56, GB40 | 28 days | Wang Yuanhui, Zhang Lei, Pan Guodong, Liu Jing, Zhang Hongrui, Song Xu, Wang Qiang. Traditional Chinese Medicine comprehensive therapy for the improvement of motor function in spinal cord injury patients. J Tradit Chin Med, 2016, 36(5): 618-624 | text | Point selection recorded in a clinical text or case report. |
| Alzheimer Disease 1 | ST36, ST40, SP06, SP10, HT07, BL56, KD03, PC06, GB39, CV06, GV04, GV05, GV20, GV24 | – | Progress of Mild Alzheimer's Disease in Participants on Acupuncture Versus Sham Acupuncture. ClinicalTrials.gov NCT05078944 | 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