BL28 (Páng Guāng Shū, “Bladder Shu”) is the Back-Shu of Bladder point of the Bladder Meridian. BL28 is located on the sacrum, 1.5 cun lateral to the midline, at the level of the second sacral foramen. It regulates the Bladder, resolves damp-heat, and benefits urination.
BL28 is located on the sacrum, 1.5 cun lateral to the midline, at the level of the second sacral foramen.
Perpendicular insertion 1.0 to 1.5 cun. Exercise caution to avoid deep insertion, especially in thin patients.
Regulates the Bladder, resolves damp-heat, and benefits urination.
Frequent urination, dysuria, enuresis, cystitis, lower back pain.
As the Back-Shu point of the Bladder, BL28 is the primary point for all Bladder disorders, especially those involving damp-heat, such as frequent, urgent, or painful urination, and urinary tract infections. It is also effective for enuresis and retention of urine due to deficiency or obstruction. Its action extends to the lower back, making it useful for lumbago associated with urinary issues, and it is often paired with CV3 (Zhongji), the Front-Mu point of the Bladder.
BL28 is one of 67 points on the Bladder Meridian. Nearby points:
BL28 is located on the sacrum, 1.5 cun lateral to the midline, at the level of the second sacral foramen.
BL28 regulates the Bladder, resolves damp-heat, and benefits urination. Common clinical indications include frequent urination, dysuria, enuresis, cystitis, lower back pain.
Perpendicular insertion 1.0 to 1.5 cun. Exercise caution to avoid deep insertion, especially in thin patients. Caution: ⚠ Reduce depth in thin patients — avoid deep perpendicular insertion.
BL28 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).