Bladder 51 (BL 51) Huang Men — Vitals Gate

This point, on the back, regulates qi, harmonises the Stomach and benefits the breast.

Bladder 51 (BL 51) Huang Men 肓門 — Vitals Gate

Location

On the lower back, 3 cun lateral to the lower border of the spinous process of the first lumbar vertebra (L1), level with BL-22.

Anatomy

On the latissimus dorsi and erector spinae; the lumbar artery; the dorsal rami of the lumbar nerves.

Actions & Functions

  • Regulates qi and harmonises the middle burner
  • Benefits the breast and dissipates masses

Indications

Abdominal pain and masses, constipation, and breast disorders.

Needling

0.5-1.0 cun, perpendicular or oblique insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With BL-22 for abdominal disorders.

Classical Text References

A point of the outer Bladder line.

Cautions & Contraindications

Avoid deep insertion towards the kidney.

Latest Research

Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

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PubMed research

Traditional Chinese Medicine Improves Nutritional Status in Maintenance Haemodialysis Patients, Meta-Analysis Finds

Research summary (Traditional Chinese Medicine): Efficacy of traditional Chinese medicine in improving nutritional status among Chinese maintenance hemodialysis patients: a meta-analysis of - Frontiers in nutrition, 2026.