BL5 Wuchu

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

BL5 (Wuchu, “Wuchu”) is an acupuncture point on the Bladder Meridian. It is located on the head, 1.5 cun lateral to the midline at the level of Shangxing (DU23), which is 1 cun posterior to the anterior hairline. It expels wind, calms spasms, brightens the eyes, and alleviates pain.

Location

On the head, 1.5 cun lateral to the midline at the level of Shangxing (DU23), which is 1 cun posterior to the anterior hairline.

Needling

Transverse (subcutaneous) insertion, 0.3-0.5 cun.

TCM functions

Expels wind, calms spasms, brightens the eyes, and alleviates pain..

Indications

Spinal rigidity with arching back, convulsions, epilepsy, headache, dizziness, eye pain, blurred vision, upward-staring eyes, inability to recognize people, sneezing, cold and heat sensations, sweating with no relief..

Clinical notes

As a local point on the Bladder channel, Wuchu is primarily used for conditions affecting the head and eyes, such as headache, dizziness, and various visual disturbances. Its classical indication for severe conditions like epilepsy and convulsions (tetanus) highlights its function in calming internal wind and spasms, particularly when the spine is involved.

On the Bladder channel

BL5 is one of 67 points on the Bladder Meridian. Nearby points:

Frequently asked questions

Where is BL5 located?

BL5 (Wuchu) is located on the head, 1.5 cun lateral to the midline at the level of Shangxing (DU23), which is 1 cun posterior to the anterior hairline.

What is BL5 used for?

BL5 expels wind, calms spasms, brightens the eyes, and alleviates pain. Common clinical indications include spinal rigidity with arching back, convulsions, epilepsy, headache, dizziness, eye pain, blurred vision, upward-staring eyes, inability to recognize people, sneezing, cold and heat sensations, sweating with no relief.

How is BL5 needled?

Transverse (subcutaneous) insertion, 0.3-0.5 cun.

Which meridian is BL5 on?

BL5 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng 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.