Bladder 54 (BL 54) Zhi Bian — Lowermost Edge

This point, on the buttock, activates the channel, benefits the lower burner and is a principal point for lumbosacral pain, hip pain and sciatica.

Bladder 54 (BL 54) Zhi Bian 秩邊 — Lowermost Edge

Location

On the buttock, 3 cun lateral to the midline, level with the fourth posterior sacral foramen (S4), level with BL-30.

Anatomy

On the gluteus maximus; the inferior gluteal artery; the inferior gluteal nerve and, deep, the sciatic nerve.

Actions & Functions

  • Activates the channel and relieves lumbosacral, hip and leg pain
  • Benefits the lower burner, bladder and anus

Indications

Lumbosacral and hip pain, sciatica and pain of the leg, difficult urination, haemorrhoids, and genital pain.

Needling

1.5-3.0 cun, perpendicular insertion.

Moxibustion Suitability

Suitable for moxibustion.

Point Combinations

With BL-40 and GB-30 for sciatica.

Classical Text References

A principal point of the buttock for the lower back and leg.

Cautions & Contraindications

Deep needling near the sciatic nerve requires care.

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.