SI08 Xiaohai (Small Sea)

小海xiǎo hǎiXiaohai

Small Intestine Meridian

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Location of acupuncture point SI08 Xiaohai (Small Sea)
42
Indications
10
Protocols
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Location

When elbow is flexed point is located in the depression the between olecranon of the ulna and medial epicondyle of the humerus.

Categories

  • He-Sea point of the Small Intestine meridian

The classical groups this point belongs to, from Deadman, Al-Khafaji & Baker, A Manual of Acupuncture.

Cautions

Caution with ulnar nerve.

Indications

Conditions for which SI08 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

AgitationContraction HandQi DeficiencyDepressionSadness & DepressionDisease FebrilePsychological DisorderDry ThroatEpilepsyFrightGhost Syndrome Fright EpilepsyHeatHeat FireHeat MouthElbow StiffnessImmobility ElbowJaundiceJaundice EyesMalariaPainArm PainArmpit PainChest PainRib PainElbow PainEye PainHand Palm PainHeart PainTongue Root PainPalpitationsPharyngitisPulse / Heart Rate PoundingPulse Heart Rate PoundingRed EyesRestlessnessSighing ExcessiveChannel Stagnation SwellingTongue SwellingTongue ThrustingLoss of ConsciousnessUnconsciousness Windstroke

TCM actions

What classical sources say SI08 does in the terms of Chinese medicine theory. These describe the point, not a condition.

Calm Spirit Shen

Protocols using SI08

  • Knee Pain, Osteoarthritis Knee, Stiffness Knee – LU06, LI04, LI10, LI15, ST34, ST36, ST40, ST44, SP05, SP06, SP09, SP10, SI08, SI10, BL23, BL40, BL60, KD03, KD07, KD10, TB14, GB33, GB34, LV03, LV07, LV08 (doi:10.1186/1472-6882-4-6 ↗)
  • Fatigue, Dizziness, Tinnitus, Headache, Constipation, Depression, Insomnia, Itchiness, Edema, Palpitation, Knee Pain, Back Pain, Vision Blurred, Cervical Pain, Stiffness Shoulder, Cramp Leg, Lower-limb Pain, Upper-limb Numbness, Lower-limb Numbness, Hemodialysis Complication – LU05, LU09, LI02, LI11, ST41, ST45, SP02, SP05, HT07, HT09, SI03, SI08, BL65, BL67, KD01, KD07, PC07, PC09, TB03, TB10, GB38, GB43, LV02, LV08 (doi:10.1155/2015/802846 ↗)
  • Performance Athletic, Strength Forearm, Fatigue Muscle – LI04, LI10, LI11, SI08, TB05, TB10 (doi:10.1155/2021/1992753 ↗)
  • Muscle Endurance Forearm, Muscle Fatigue Upper Limb, Athletic Performance Upper Limb – LI04, LI10, LI11, SI08, TB05, TB10 (doi:10.1155/2022/8052256 ↗)
  • 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 ↗)
  • Fire Liver, Fire Liver – SI01, SI02, SI08, BL05, BL18, KD01 (Yang Yong-Xuan, clinical point-selection notes)
  • Wind Liver, Wind Liver – LU11, ST01, ST03, ST04, ST05, ST06, ST07, ST08, ST42, ST45, SI03, SI08, BL01, BL02, BL03, BL04, BL05, BL06, BL09, BL10, BL41, XU25 (Yang Yong-Xuan, clinical point-selection notes)
  • Heat Lung, Wind Lung, Heat Lung, Wind Lung – LU03, LU06, LU07, LU08, LU10, LU11, LI04, LI19, SI07, SI08, SI09, SI10, SI18, BL02, BL04, BL05, BL06, BL07, BL11 (Yang Yong-Xuan, clinical point-selection notes)
  • Neck Pain, Radiculopathy Cervical, Upper Extremity Numbness – LI04, LI10, LI13, SI03, SI08, SI11, TB05, TB09, TB13, GB20, GB21, GV14 (陈建辉周友龙王东阳张琼刘华. 陈氏颈三穴针刺为主联合颈部推拿正脊、艾灸治疗神经根型颈椎病的研究. 中医研究 ., 2025 [CNKI])
  • Upper Limb Weakness, Upper Limb Numbness, Peripheral Nerve Injury Upper Limb – LI04, LI10, LI11, LI15, SI03, SI04, SI07, SI08, PC03, PC06, TB05 (章明星王蕊刘阳阳刘建卫郭义. 基于现代文献总结针灸治疗周围神经损伤选穴规律. 北京中医药大学学报 ., 2015 [CNKI])

Most often selected alongside SI08

How many sourced protocols in the index pair each point with SI08. Corpus frequency, not a combination to use.

  • LI04Junction Valley6 protocols
  • LI10Arm Three Miles5 protocols
  • LI11Pond At The Bend5 protocols
  • SI03Back Stream4 protocols
  • TB05Outer Gate4 protocols
  • TB10Heavenly Well4 protocols
  • BL05Fifth Place3 protocols
  • LI15Shoulder And Clavicle3 protocols
  • SP05Metal Hill3 protocols
  • BL02Gathered Bamboo2 protocols
  • BL04Deviating Turn2 protocols
  • BL06Receiving Light2 protocols