LI12 Elbow Crevice

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

LI12 (Zhouliao, “Elbow Crevice”) is an acupuncture point on the Large Intestine Meridian. LI12 is found on the lateral aspect of the upper arm, 1 cun superior to LI11, at the radial side of the humerus. It is located on the line connecting LI11 and LI15. It activates channel, alleviates pain.

Location

LI12 is found on the lateral aspect of the upper arm, 1 cun superior to LI11, at the radial side of the humerus. It is located on the line connecting LI11 and LI15.

Needling

Perpendicular insertion 1.0-1.5 cun. Avoid the radial nerve.

TCM functions

Activates channel, alleviates pain.

Indications

Elbow pain, arm numbness, paralysis of upper limb.

Clinical notes

Zhouliao is primarily used for local conditions of the elbow, particularly pain, numbness, and restricted movement. It effectively activates the Large Intestine channel, making it beneficial for tennis elbow, golfer's elbow, and other forms of epicondylitis. Its name, 'Elbow Crevice,' directly indicates its anatomical focus. It is often needled with LI11 and LI10 for comprehensive elbow pain relief.

On the Large Intestine channel

LI12 is one of 20 points on the Large Intestine Meridian. Nearby points:

Frequently asked questions

Where is LI12 located?

LI12 is found on the lateral aspect of the upper arm, 1 cun superior to LI11, at the radial side of the humerus. It is located on the line connecting LI11 and LI15.

What is LI12 used for?

LI12 activates channel, alleviates pain. Common clinical indications include elbow pain, arm numbness, paralysis of upper limb.

How is LI12 needled?

Perpendicular insertion 1.0-1.5 cun. Avoid the radial nerve.

Which meridian is LI12 on?

LI12 is a point on the Large Intestine Meridian (Shǒu Yángmíng Dàcháng 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.