Large Intestine 14 (LI 14) Bi Nao — Upper Arm

This point, where the deltoid inserts, benefits the eyes, relieves shoulder disorders and dissipates phlegm nodules.

Large Intestine 14 (LI 14) Bi Nao 臂臑 — Upper Arm

Location

On the lateral aspect of the upper arm, at the lower end of the deltoid muscle, on the line connecting LI-11 and LI-15, approximately 7 cun proximal to LI-11.

Anatomy

At the insertion of the deltoid muscle; the posterior circumflex humeral artery and the deep brachial artery; the posterior antebrachial cutaneous nerve and the radial nerve.

Actions & Functions

  • Benefits the eyes
  • Activates the channel and benefits the shoulder
  • Dissipates phlegm nodules

Indications

Eye disorders, pain and motor impairment of the shoulder and arm, stiff neck, and scrofula.

Needling

0.5-1.0 cun, perpendicular or obliquely upward insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With LI-15 for shoulder disorders; with eye points for ophthalmic disorders.

Classical Text References

A meeting point with the Small Intestine and Bladder channels and the Yang Wei Mai; classically used for the eyes and scrofula.

Cautions & Contraindications

None specific.

Latest Research

Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

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PubMed research

Acupuncture Shows Sustained Benefits for Chronic Daily Headache Prevention in Adults, Meta-Analysis Finds

Research summary (Acupuncture): Utility of Acupuncture Therapy for Adult Chronic Daily Headache Prophylaxis: A Systematic Review and Meta-Analysis. - Medical science monitor : international medical journal of experimental and clinical research, 2026.