DU4 Life Gate

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

DU4 (Mingmen, “Life Gate”) is an acupuncture point on the Governing Vessel Meridian. It is located on the lower back, on the posterior midline, in the depression below the spinous process of the 15th vertebra (L2). It tonifies Kidney Yang, strengthens the lumbar spine, regulates Governing Vessel.

Location

On the lower back, on the posterior midline, in the depression below the spinous process of the 15th vertebra (L2).

Needling

Perpendicular insertion 0.5-1 cun. Caution for spinal cord injury.

⚠ Spinal cord deep to this point: oblique/limited depth; never deep perpendicular at the midline.

TCM functions

Tonifies Kidney Yang, strengthens the lumbar spine, regulates Governing Vessel.

Indications

Low back pain, impotence, nocturnal emission, irregular menstruation, leukorrhea, diarrhea, fatigue, cold limbs.

Clinical notes

DU4, the 'Life Gate,' is one of the most vital points for tonifying Kidney Yang, making it essential for chronic fatigue, cold limbs, impotence, and infertility. It powerfully strengthens the lumbar spine, addressing chronic low back pain, weakness, and knee issues, especially those associated with Kidney deficiency. Its role in regulating the Governing Vessel underscores its importance in supporting overall vitality and warmth in the body, often paired with BL23 for profound Kidney Yang tonification.

On the Governing Vessel channel

DU4 is one of 28 points on the Governing Vessel Meridian. Nearby points:

Frequently asked questions

Where is DU4 located?

DU4 (Mingmen) is located on the lower back, on the posterior midline, in the depression below the spinous process of the 15th vertebra (L2).

What is DU4 used for?

DU4 tonifies Kidney Yang, strengthens the lumbar spine, regulates Governing Vessel. Common clinical indications include low back pain, impotence, nocturnal emission, irregular menstruation, leukorrhea, diarrhea, fatigue, cold limbs.

How is DU4 needled?

Perpendicular insertion 0.5-1 cun. Caution for spinal cord injury. Caution: ⚠ Spinal cord deep to this point: oblique/limited depth; never deep perpendicular at the midline.

Which meridian is DU4 on?

DU4 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.