Pericardium 2 (PC 2) Tian Quan — Heavenly Spring

This point, on the upper arm, regulates Heart qi, unbinds the chest and relieves pain of the arm.

Pericardium 2 (PC 2) Tian Quan 天泉 — Heavenly Spring

Location

On the anterior aspect of the upper arm, 2 cun distal to the anterior axillary fold, between the two heads of the biceps brachii muscle.

Anatomy

Biceps brachii; the muscular branches of the brachial artery; the medial antebrachial cutaneous nerve and the musculocutaneous nerve.

Actions & Functions

  • Regulates qi and unbinds the chest
  • Activates the channel and stops pain

Indications

Cardiac pain, fullness of the chest and costal region, cough, and pain of the inner arm.

Needling

0.5-1.0 cun, perpendicular insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With PC-1 for chest pain; with PC-3 for arm pain.

Classical Text References

Listed for cardiac and chest pain and disorders of the inner arm.

Cautions & Contraindications

Avoid the brachial artery.

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 Identified as a Key Neuromuscular Intervention for Post-Stroke Swallowing Difficulties

Research summary (Acupuncture): Neuromuscular-related interventions for post-stroke dysphagia: a comprehensive narrative review. - Frontiers in neuroscience, 2026.