BL-33 - Central Crevice

中髎 - Zhōng liáo

Point Region: Lower back

BL

Bladder Meridian

足太阳膀胱经 - Zú Tàiyáng Pángguāng Jīng

Location & How to Find

Anatomical Location: On the sacrum, in the third opening in its back (the third posterior sacral foramen): the first hollow below BL-32.

How to Locate:

  1. Find BL-32, in the second hollow of the sacrum
  2. Move down to the next hollow
  3. The point is in that hollow
BL-33 (Central Crevice) acupressure point location: On the sacrum, in the third opening in its back (the third posterior sacral foramen): the first hollow below BL-32.

How to Apply Pressure

Using a fingertip, apply gentle, steady pressure in the third hollow in the back of the sacrum, directly below the second hollow (BL-32). Firm but never painful pressure is enough; stop if it hurts. Do not press this point during pregnancy. Skip this point over irritated or broken skin.

Traditional Indications

In TCM, this point is traditionally used for:

  • Painful menstruation
  • Vaginal discharge
  • Menstrual irregularities
  • Lower back pain
  • Bladder disorders

Related Health Concerns

Lower Back Pain

Select a point to see its location, how to find it, and its traditional uses.

Important Precautions

Avoid this point with:

  • Pregnancy