Yaoyan Yāoyǎn

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

Yaoyan (Yāoyǎn, “Yāoyǎn”) is an extra (non-channel) acupuncture point. It is located in the depression approximately 3.5 to 4 cun lateral to the lower border of the spinous process of the fourth lumbar vertebra (L4). The point is found in the hollow that appears on either side of the lumbar spine when the arms are raised and slightly drawn back. It strengthens the kidneys, benefits the lumbar region, and alleviates pain.

Location

In the depression approximately 3.5 to 4 cun lateral to the lower border of the spinous process of the fourth lumbar vertebra (L4). The point is found in the hollow that appears on either side of the lumbar spine when the arms are raised and slightly drawn back.

Needling

Perpendicular or oblique insertion towards the spine, 1.0 to 1.5 cun. Deep needling should be avoided to prevent injury to the kidneys.

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TCM functions

Strengthens the kidneys, benefits the lumbar region, and alleviates pain..

Indications

Lumbar pain, lumbar pain that is difficult to bend or extend, consumptive disease with parasites (tuberculosis)..

Clinical notes

Yaoyan is a primary local point for various types of lumbar pain, especially those related to Kidney deficiency. Its location corresponds to the quadratus lumborum muscle, making it effective for muscular strain. While classical texts mention its use for systemic consumptive diseases, its modern application is almost exclusively for lower back pain and weakness.

Frequently asked questions

Where is Yaoyan located?

Yaoyan (Yāoyǎn) is located in the depression approximately 3.5 to 4 cun lateral to the lower border of the spinous process of the fourth lumbar vertebra (L4). The point is found in the hollow that appears on either side of the lumbar spine when the arms are raised and slightly drawn back.

What is Yaoyan used for?

Yaoyan strengthens the kidneys, benefits the lumbar region, and alleviates pain. Common clinical indications include lumbar pain, lumbar pain that is difficult to bend or extend, consumptive disease with parasites (tuberculosis).

How is Yaoyan needled?

Perpendicular or oblique insertion towards the spine, 1.0 to 1.5 cun. Deep needling should be avoided to prevent injury to the kidneys. Caution: The Zi Sheng Jing notes a case of a woman with chronic severe lumbar pain where moxibustion on Yaoyan was considered contraindicated ('腰眼忌灸').

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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.