DU1 Long Strong

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

DU1 (Changqiang, “Long Strong”) is the Luo-connecting point of the Governing Vessel Meridian. DU1 is located on the posterior midline, midway between the tip of the coccyx and the anus. It regulates the anterior and posterior Yin, treats hemorrhoids, calms the spirit.

Location

DU1 is located on the posterior midline, midway between the tip of the coccyx and the anus.

Needling

Insert perpendicularly 0.5-1 cun. Caution: Avoid deep insertion to prevent injury to the rectum.

TCM functions

Regulates the anterior and posterior Yin, treats hemorrhoids, calms the spirit.

Indications

Hemorrhoids, prolapse of rectum, diarrhea, constipation, lumbar pain, epilepsy.

Luo-connecting

Clinical notes

DU1 is the Luo-connecting point of the Governing Vessel, allowing it to connect with the Ren Mai and treat disorders of both the anterior and posterior Yin. It is a primary point for hemorrhoids, prolapse of the rectum, and other anal issues, often used with BL57. Its ability to calm the spirit makes it useful for severe mental-emotional disorders, especially those involving agitation or mania.

On the Governing Vessel channel

DU1 is one of 28 points on the Governing Vessel Meridian. Nearby points:

Frequently asked questions

Where is DU1 located?

DU1 is located on the posterior midline, midway between the tip of the coccyx and the anus.

What is DU1 used for?

DU1 regulates the anterior and posterior Yin, treats hemorrhoids, calms the spirit. Common clinical indications include hemorrhoids, prolapse of rectum, diarrhea, constipation, lumbar pain, epilepsy.

How is DU1 needled?

Insert perpendicularly 0.5-1 cun. Caution: Avoid deep insertion to prevent injury to the rectum.

Which meridian is DU1 on?

DU1 is a point on the Governing Vessel Meridian (Dū Mài).

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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.