TB20 Angle Vertex

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

TB20 (Jiǎosūn, “Angle Vertex”) is an acupuncture point on the Triple Burner Meridian. TB20 is located directly above the apex of the ear, within the hairline, when the ear is folded forward. It benefits the ear and teeth, clears heat.

Location

TB20 is located directly above the apex of the ear, within the hairline, when the ear is folded forward.

Needling

Insert subcutaneously 0.3-0.5 cun.

TCM functions

Benefits the ear and teeth, clears heat.

Indications

Tinnitus, redness and swelling of the ear, toothache, swelling of the cheek.

Clinical notes

TB20 is a key local point for disorders of the ear and teeth, particularly effective for tinnitus, deafness, and toothache, especially in the upper jaw. It clears heat and benefits the ear, making it useful for ear infections and swelling. This point is often used in conjunction with TB21 and TB17 for comprehensive treatment of auditory issues.

On the Triple Burner channel

TB20 is one of 23 points on the Triple Burner Meridian. Nearby points:

Frequently asked questions

Where is TB20 located?

TB20 is located directly above the apex of the ear, within the hairline, when the ear is folded forward.

What is TB20 used for?

TB20 benefits the ear and teeth, clears heat. Common clinical indications include tinnitus, redness and swelling of the ear, toothache, swelling of the cheek.

How is TB20 needled?

Insert subcutaneously 0.3-0.5 cun.

Which meridian is TB20 on?

TB20 is a point on the Triple Burner Meridian (Sān Jiāo).

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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.