PC2 Celestial Spring

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

PC2 (Tianquan, “Celestial Spring”) is an acupuncture point on the Pericardium Channel Meridian. It is located on the medial aspect of the upper arm, 2 cun below the anterior axillary fold, between the two heads of the biceps brachii muscle. It unbinds the chest, activates blood, alleviates pain.

Location

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

Needling

Perpendicular insertion 0.8-1.2 cun. No major safety concerns.

TCM functions

Unbinds the chest, activates blood, alleviates pain.

Indications

Chest pain, cardiac pain, cough, arm pain.

Clinical notes

PC2 is primarily a local point for pain in the chest, arm, and shoulder, particularly along the Pericardium meridian pathway. It is effective for unbinding the chest and activating blood, making it useful for angina pectoris and intercostal neuralgia. Its ability to alleviate pain extends to the upper limb, addressing conditions like frozen shoulder or pain radiating down the arm.

On the Pericardium Channel channel

PC2 is one of 9 points on the Pericardium Channel Meridian. Nearby points:

Frequently asked questions

Where is PC2 located?

PC2 (Tianquan) is located on the medial aspect of the upper arm, 2 cun below the anterior axillary fold, between the two heads of the biceps brachii muscle.

What is PC2 used for?

PC2 unbinds the chest, activates blood, alleviates pain. Common clinical indications include chest pain, cardiac pain, cough, arm pain.

How is PC2 needled?

Perpendicular insertion 0.8-1.2 cun. No major safety concerns.

Which meridian is PC2 on?

PC2 is a point on the Pericardium Channel Meridian (Xīnbāo Jīng).

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.