Location
Anterior and inferior to the external malleolus in the depression on the lateral side of the tendon of the extensor digitorum longus.
Categories
- Yuan-Source point of the Gallbladder meridian
The classical groups this point belongs to, from Deadman, Al-Khafaji & Baker, A Manual of Acupuncture.
No specific contraindications.
Indications
Conditions for which GB40 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.
Muscle WastingChillsCommon ColdCramping LegShan DisorderChest BloatingCostal Lateral BloatingBreathing Shortness Of Breath ProblemsEyesight / Vision PoorPoor VisionEyesight / Vision Superficial ObstructionSuperficial Obstruction VisionFeverHardness Abdomen InferiorHeat GallbladderHerpes ZosterFoot Drop StiffnessImmobility Foot DropMalaria ChronicPainChest PainRib PainEye PainMigraineHeadache One-sided PainHip PainLeg PainLeg Inferior PainNeck PainLumbar Spine PainWrist PainParalysisPharyngitis RednessRefluxSciaticaShiveringSighing ExcessiveChannel Stagnation SwellingAnkle Lateral SwellingArmpit SwellingNeck SwellingBi Arthralgia Leg SyndromeBi / Arthralgia Leg SyndromeDamp Heat SyndromeDamp-heat SyndromeVomitingAnkle WeaknessStroke
TCM actions
What classical sources say GB40 does in the terms of Chinese medicine theory. These describe the point, not a condition.
Benefit JointsBenefit Regulate Qi LiverBenefit Regulate ShaoyangRegulate Qi LiverRegulate Shaoyang
Protocols using GB40
The 50 best-sourced of 98, ranked by strength of evidence. The count above is the full figure.
- Headache, Vomiting, Nausea, Migraine, Aversion To Light, Aversion To Sound – GB40 (doi:10.1016/s0254-6272(09)60030-3 ↗)
- Paralysis Hemiplegia, Paralysis Flaccid – LU05, LI04, SP06, HT01, BL40, KD01, PC06, GB40, CV04, GV26 (doi:10.1016/s0254-6272(08)60022-9 ↗)
- Fatigue Cancer-related, Fatigue Post-treatment, Breast Cancer, Myofascial Pain, Musculoskeletal Pain – LI04, ST36, SP06, SI03, BL62, KD03, TB05, GB20, GB29, GB30, GB40, GB43 (doi:10.1186/1472-6882-11-49 ↗)
- Headache Migraine – GB40 (doi:10.1016/s0254-6272(09)60030-3 ↗)
- Nausea, Photophobia, Migraine, Headache Migraine, Headache Unilateral, Phonophobia, Headache Pulsating – TB05, GB20, GB34, GB40 (doi:10.1371/journal.pone.0099538 ↗)
- Nausea, Headache Post-dural-puncture, Headache Bilateral, Photosensitivity, Occiput Pain – LI04, ST36, SP06, GB21, GB40, LV03 (doi:10.7453/gahmj.2015.010 ↗)
- Headache Migraine, Migraine Without Aura – TB05, GB34, GB40 (doi:10.1016/j.nicl.2017.05.013 ↗)
- Shoulder Pain, Arm Pain, Neck Pain, Arm Numbness, Radiculopathy Cervical – LI04, ST44, SI03, BL60, TB05, GB34, GB40, LV03, GV14 (doi:10.1155/2018/3465897 ↗)
- Ankle Pain, Sprain Ankle, Ankle Swelling, Sprain Ankle Lateral – ST36, ST41, BL60, BL62, KD03, KD06, GB39, GB40 (doi:10.1186/s13063-020-4111-z ↗)
- Ankle Pain, Ankle Swelling, Sprain Ankle Lateral, Instability Ankle – ST36, ST41, BL60, BL62, KD03, KD06, GB39, GB40 (doi:10.1186/s13063-021-05135-6 ↗)
- Nausea, Photophobia, Headache Migraine, Headache Unilateral, Phonophobia – LI04, TB05, GB08, GB20, GB34, GB40 (doi:10.1097/NRL.0000000000000386 ↗)
- Anxiety, Depression, Insomnia, Itching, Itchiness Skin, Pruritus, Prurigo Nodularis, Pruritus Chronic – LI04, LI11, ST25, ST36, ST42, SP06, SP10, SI04, BL17, BL64, TB04, TB05, GB20, GB40, CV06, CV12, GV14, GV16, GV20, GV24 (doi:10.2147/CCID.S336109 ↗)
- Stroke Hemiplegia, Paralysis Limb, Gait Disturbance, Balance Dysfunction – ST36, ST44, SP06, GB30, GB31, GB37, GB39, GB40 (doi:10.1097/MD.0000000000037784 ↗)
- Paralysis Upper Limb, Stroke Sequelae, Motor Dysfunction Upper Limb, Spasticity Upper Limb – LI04, LI10, LI11, LI13, LI14, LI15, ST34, ST40, SP09, SP10, KD03, TB05, GB34, GB40, GB41, LV03 (doi:10.1136/spcare-2024-005174 ↗)
- Rheumatoid Arthritis, Joint Pain, Inflammation Joint – LI05, LI11, LI15, ST36, SP05, SP09, HT03, SI05, SI08, BL40, BL62, KD06, PC07, TB04, TB10, TB14, GB34, GB40 (doi:10.1186/s12906-025-04891-1 ↗)
- Dizziness, Limb Weakness, Dysarthria, Speech Impairment, Balance Impaired, Ataxia Cerebellar, Gait Instability, Tremor Intention – GB12, GB20, GB34, GB40, LV03, GV20 (doi:10.1097/MD.0000000000045895 ↗)
- 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 ↗)
- 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 ↗)
- Fatigue, Anxiety, Nausea, Neuropathic Pain, Neuropathy Peripheral Chemotherapy-induced, Dysesthesia Oral – LI04, LI10, ST36, SP06, PC06, GB40, LV03, GV20 (doi:10.1016/j.cct.2023.107273 ↗)
- Chemotherapy Nausea, Vomiting Chemotherapy-induced, Nausea Anticipatory, Vomiting Acute, Vomiting Delayed – LU09, LI04, ST36, SP06, HT07, SI04, KD03, PC06, GB40, LV14, CV12 (doi:10.1590/1980-220X-REEUSP-2023-0191en ↗)
- Ankle Pain, Sprain Ankle – ST36, ST41, SP05, GB34, GB40, LV04 (doi:10.3831/kpi.2005.8.2.011 ↗)
- Hypochondriac Pain, Colic Gallbladder – ST36, BL18, BL19, GB24, GB34, GB40, LV03, LV14 (doi:10.1016/j.jtcms.2025.09.006 ↗)
- Insomnia, And Gallbladder Qi Heart Deficiency – BL15, BL19, GB40 (doi:10.1155/ijcp/6940576 ↗)
- Stroke Sequelae, Stroke Post, Paralysis Ankle, Ankle Joint Problems, Ankle Dysfunction – ST31, ST34, ST36, ST37, ST40, ST41, SP10, KD06, GB34, GB39, GB40, LV03 (doi:10.27127/d.cnki.ghlzu.2024.000593 ↗)
- Stroke Sequelae, Stroke Post, Paralysis Ankle, Ankle Joint Problems, Ankle Dysfunction – ST31, ST34, ST36, ST37, ST40, ST41, SP10, BL39, KD06, GB34, GB39, GB40, LV03 (doi:10.27127/d.cnki.ghlzu.2024.000593 ↗)
- Ankle Pain, Sprain Ankle Chronic, Ankle Problems – ST41, BL60, BL62, KD06, GB40 (doi:10.16448/j.cjtcm.2017.0181 ↗)
- Gait Impairment, Balance Disorder, Hemiplegia Post-stroke – ST36, SP06, SP09, GB34, GB40, LV03 (doi:10.19917/j.cnki.1005-0779.024045 ↗)
- Hemiplegia Post-stroke, Foot Drop, Ankle Mobility Reduced, Lower Limb Motor Dysfunction – ST36, ST37, ST41, SP06, GB20, GB34, GB39, GB40, GV20 (doi:10.27465/d.cnki.gzzyc.2020.000412 ↗)
- Paralysis Lower Limb, Foot Inversion Post-stroke – SP06, KD06, GB34, GB39, GB40 (doi:10.13460/j.issn.1005-0957.2023.13.0015 ↗)
- Paralysis Lower Limb, Stroke Sequelae, Gait Impairment, Gait Disturbance, Foot Drop, Gait Dysfunction Post-stroke – ST36, ST41, GB34, GB39, GB40, LV03 (doi:10.13703/j.0255-2930.20240115-k0004 ↗)
- Headache Migraine – LI04, GB08, GB20, GB40, GB41, LV03 (doi:10.13703/j.0255-2930.2014.10.004 ↗)
- Headache Migraine – GB04, GB08, GB20, GB34, GB40, GB41 (doi:10.13703/j.0255-2930.2014.10.004 ↗)
- Headache Migraine – TB05, GB20, GB34, GB40 (doi:10.13194/j.jlunivtcm.2009.12.136.yegx.058 ↗)
- Headache, Migraine, Headache Frontal, Migraine Without Aura – TB05, GB34, GB40 (doi:10.1177/0333102416641665 ↗)
- Tinnitus, Hearing Loss, Hearing Loss Sensorineural, Sudden Hearing Loss – SI19, TB03, TB17, TB21, GB02, GB40, LV03 (doi:10.1016/j.imr.2024.101087 ↗)
- Vision Blurred, Macular Edema, Retinal Disease – ST02, SI06, BL01, BL02, GB14, GB34, GB37, GB40 (doi:10.3389/fmed.2026.1717145 ↗)
- Stroke, Hemiplegia, Leg Weakness, Spasticity, Balance Impaired, Spasticity Post-stroke, Hemiplegia Post-stroke – SP09, BL59, KD06, KD08, GB33, GB34, GB40, LV08 (doi:10.13702/j.1000-0607.20250680 ↗)
- Stroke Sequelae, Motor Impairment, Gait Disturbance, Spasticity Lower Limb – LI04, LI11, LI15, ST41, GB34, GB39, GB40 (doi:10.13703/j.0255-2930.20240411-k0001 ↗)
- Dysarthria, Ataxia, Ataxia Cerebellar, Gait Instability – GB12, GB20, GB34, GB40, LV03, GV20, XH01A, XH01B, XH01C, XH01D (doi:10.1097/MD.0000000000045895 ↗)
- Paralysis Spastic, Stroke Post-stroke, Spasticity Upper Limb, Muscle Hypertonia – LI04, LI10, LI11, LI13, LI14, LI15, ST34, ST40, SP09, SP10, KD03, TB05, GB34, GB40, GB41, LV03, XU09A, XU09B, XU09C, XU09D, XU09E, XU09F, XU09G, XU09H, XU12 (doi:10.1136/spcare-2024-005174 ↗)
- Paralysis Spastic Post-stroke Hemiplegia – LI04, LI14, LI15, ST34, SP09, SP10, SI03, KD06, PC06, TB05, GB34, GB40 (doi:10.1016/s0254-6272(15)30071-6 ↗)
- Paralysis Spastic Post-stroke Hemiplegia – LI04, LI10, SI03, KD06, TB05, TB10, TB14, GB29, GB31, GB34, GB39, GB40, GV01, GV03, GV05, GV08, GV09, GV14, GV17, GV20 (doi:10.1016/s0254-6272(15)30071-6 ↗)
- Muscle Hypertonia Post-hemorrhagic Stroke – LU05, LI04, SP05, SP06, SP09, HT01, SI03, KD01, KD10, PC03, PC06, PC07, TB05, GB33, GB34, GB39, GB40, LV03, GV20, XH05 (doi:10.1016/s0254-6272(15)30071-6 ↗)
- Muscle Hypertonia Post-stroke – LI05, LI06, LI14, LI15, TB05, TB09, TB10, TB13, GB34, GB39, GB40, GB41, LV08, LV09 (doi:10.1016/s0254-6272(15)30071-6 ↗)
- Paralysis Spastic Post-stroke Limb Spasticity – LI04, LI11, LI14, LI15, ST36, SP06, SP09, HT03, SI03, BL57, BL60, KD01, KD06, PC06, TB05, GB34, GB39, GB40, LV03 (doi:10.1016/s0254-6272(15)30071-6 ↗)
- Balance Impaired, Gait Disturbance, Hemiplegia Post-stroke – ST36, ST44, SP06, GB30, GB31, GB37, GB39, GB40 (doi:10.1097/MD.0000000000037784 ↗)
- Spasticity Post-stroke, Spasticity Upper Limb – LI04, LI10, LI11, LI13, LI14, LI15, ST34, ST40, SP09, SP10, KD03, TB05, GB34, GB40, GB41, LV03, XU09A, XU09B, XU09C, XU09D, XU09E, XU09F, XU09G, XU09H, XU12 (doi:10.1136/spcare-2024-005174 ↗)
- Spasticity Post-stroke, Spasticity Lower Limb Post-stroke – LI04, LI11, LI15, ST36, ST40, ST41, GB34, GB39, GB40, LV03, MS06, MS08 (doi:10.13703/j.0255-2930.20240411-k0001 ↗)
- Ischemic Stroke, Headache Migraine – GB06, GB08, GB20, GB40, GB41, GV20 (doi:10.13703/j.0255-2930.2019.11.003 ↗)
- Macular Edema, Visual Acuity Reduced – ST02, SI06, BL01, BL02, GB14, GB34, GB37, GB40 (doi:10.3389/fmed.2026.1717145 ↗)
Most often selected alongside GB40
How many sourced protocols in the index pair each point with GB40. Corpus frequency, not a combination to use.
- GB34Yang Mound Spring51 protocols
- ST36Leg Three Miles40 protocols
- LV03Great Surge39 protocols
- LI04Junction Valley33 protocols
- TB05Outer Gate30 protocols
- GB39Suspended Bell24 protocols
- ST41Dividing Cleft23 protocols
- SP06Three Yin Intersection19 protocols
- BL60Kunlun (Mountains)18 protocols
- GB20Wind Pool16 protocols
- KD06Shining Sea15 protocols
- GB30Jumping Circle13 protocols
