BL30 (Bái Huán Shū, “White Ring Shu”) is an acupuncture point on the Bladder Meridian. It is located in the sacral region, 1.5 cun lateral to the midline, at the level of the fourth posterior sacral foramen, which corresponds to the space below the 21st vertebra in classical counting. It strengthens the lumbar spine and knees, regulates the lower jiao, dispels wind and cold, resolves dampness, and treats disorders of urination, defecation, and the reproductive system.
In the sacral region, 1.5 cun lateral to the midline, at the level of the fourth posterior sacral foramen, which corresponds to the space below the 21st vertebra in classical counting.
Perpendicular or oblique insertion towards the midline, 1.0 to 1.5 cun. Care should be taken to avoid deep insertion into the sacral foramen.
Strengthens the lumbar spine and knees, regulates the lower jiao, dispels wind and cold, resolves dampness, and treats disorders of urination, defecation, and the reproductive system..
Lumbosacral pain, hernia pain, difficult urination and defecation, numbness in the hands and feet, hip pain, leg and knee problems, malaria with heat, cold pain in the lumbar spine, inability to lie down for long periods, vacuity taxation wind, restricted movement of the back, muscle spasms and contractures, vacuity heat and blockage, lumbosacral spasmodic pain, inability to bend forward or backward, difficulty sitting up, yellow urine, heavy sensation and inability to lift the lumbar and sacral region, red and yellow urine, seminal emission from dream, nocturnal emission due to fright, white vaginal discharge..
BL30 is a key local point for disorders of the lumbosacral region, pelvis, and genitourinary system. Its indications for pain, stiffness, and weakness in the lower back and hips make it essential for treating sciatica and sacroiliac joint dysfunction. Furthermore, its classical use for hernia, seminal emission, and vaginal discharge highlights its role in regulating the lower jiao and addressing reproductive and urinary issues rooted in local stagnation or deficiency.
BL30 is one of 67 points on the Bladder Meridian. Nearby points:
BL30 (Bái Huán Shū) is located in the sacral region, 1.5 cun lateral to the midline, at the level of the fourth posterior sacral foramen, which corresponds to the space below the 21st vertebra in classical counting.
BL30 strengthens the lumbar spine and knees, regulates the lower jiao, dispels wind and cold, resolves dampness, and treats disorders of urination, defecation, and the reproductive system. Common clinical indications include lumbosacral pain, hernia pain, difficult urination and defecation, numbness in the hands and feet, hip pain, leg and knee problems, malaria with heat, cold pain in the lumbar spine, inability to lie down for long periods, vacuity taxation wind, restricted movement of the back, muscle spasms and contractures, vacuity heat and blockage, lumbosacral spasmodic pain, inability to bend forward or backward, difficulty sitting up, yellow urine, heavy sensation and inability to lift the lumbar and sacral region, red and yellow urine, seminal emission from dream, nocturnal emission due to fright, white vaginal discharge.
Perpendicular or oblique insertion towards the midline, 1.0 to 1.5 cun. Care should be taken to avoid deep insertion into the sacral foramen. Caution: Several classical sources, including the Jia Yi Jing and Qian Jin Yao Fang, explicitly forbid moxibustion on this point. The Zi Sheng Jing adds that after needling, one should avoid sexual activity and heavy lifting.
BL30 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).