LI11 Pool at the Crook

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

LI11 (Quchi, “Pool at the Crook”) is the He-Sea (Earth) point of the Large Intestine Meridian. It is located at the lateral end of the transverse cubital crease, midway between LU5 (Chize) and the lateral epicondyle of the humerus, when the elbow is flexed. It clears heat, cools blood, regulates Qi and blood.

Location

At the lateral end of the transverse cubital crease, midway between LU5 (Chize) and the lateral epicondyle of the humerus, when the elbow is flexed.

Needling

Perpendicular insertion 1.0-2.0 cun.

TCM functions

Clears heat, cools blood, regulates Qi and blood.

Indications

Fever, skin diseases, arm pain, elbow pain, hypertension.

He-Sea (Earth)

Clinical notes

As the He-Sea point of the Large Intestine channel, LI11 is a primary point for clearing heat from the body, especially in cases of high fever, skin diseases, and blood heat. It is also highly effective for local conditions of the elbow and arm, such as tennis elbow and paralysis. Its Earth element association reinforces its ability to regulate the digestive system and transform dampness. It is classically paired with SP10 for various skin conditions.

On the Large Intestine channel

LI11 is one of 20 points on the Large Intestine Meridian. Nearby points:

Frequently asked questions

Where is LI11 located?

LI11 (Quchi) is located at the lateral end of the transverse cubital crease, midway between LU5 (Chize) and the lateral epicondyle of the humerus, when the elbow is flexed.

What is LI11 used for?

LI11 clears heat, cools blood, regulates Qi and blood. Common clinical indications include fever, skin diseases, arm pain, elbow pain, hypertension.

How is LI11 needled?

Perpendicular insertion 1.0-2.0 cun.

Which meridian is LI11 on?

LI11 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.