BL36 Support

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

BL36 (Chengfu, “Support”) is an acupuncture point on the Bladder Meridian. BL36 is on the posterior aspect of the thigh, in the center of the gluteal fold. It relaxes sinews, invigorates channels, alleviates pain, treats hemorrhoids.

Location

BL36 is on the posterior aspect of the thigh, in the center of the gluteal fold.

Needling

Perpendicular insertion 1.0-2.0 cun.

TCM functions

Relaxes sinews, invigorates channels, alleviates pain, treats hemorrhoids.

Indications

Sciatica, low back pain, pain in the buttock and thigh, hemorrhoids.

Clinical notes

BL36 is a key point for alleviating pain and relaxing sinews in the posterior thigh and gluteal region, making it highly effective for sciatica, lower back pain, and hamstring tightness. It is also classically indicated for treating hemorrhoids and anal prolapse due to its location and influence on the lower extremity and anus. Needling often elicits a strong local de qi sensation that can radiate down the leg.

On the Bladder channel

BL36 is one of 67 points on the Bladder Meridian. Nearby points:

Frequently asked questions

Where is BL36 located?

BL36 is on the posterior aspect of the thigh, in the center of the gluteal fold.

What is BL36 used for?

BL36 relaxes sinews, invigorates channels, alleviates pain, treats hemorrhoids. Common clinical indications include sciatica, low back pain, pain in the buttock and thigh, hemorrhoids.

How is BL36 needled?

Perpendicular insertion 1.0-2.0 cun.

Which meridian is BL36 on?

BL36 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.