Shiqizhui Seventeenth Vertebra

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

Shiqizhui (Shíqīzhuī, “Seventeenth Vertebra”) is an extra (non-channel) acupuncture point. Shiqizhui is located on the posterior midline, below the spinous process of the fifth lumbar vertebra (L5). It activates blood and dispels stasis, strengthens the back and benefits the Kidneys.

Location

Shiqizhui is located on the posterior midline, below the spinous process of the fifth lumbar vertebra (L5).

Needling

Perpendicular insertion 0.5-1.5 cun. Caution for spinal canal.

⚠ Spinal cord deep to this point: oblique/limited depth; never deep perpendicular at the midline.

TCM functions

Activates blood and dispels stasis, strengthens the back and benefits the Kidneys.

Indications

Lumbar pain, thigh pain, paralysis of lower extremities, irregular menstruation, dysmenorrhea.

Clinical notes

Shiqizhui is a significant empirical point for lumbar pain, particularly lower back pain radiating to the legs, and is often used for sciatica. Its ability to activate blood and dispel stasis makes it effective for various musculoskeletal issues of the lower back and sacrum. It is also known to benefit the Kidneys, making it useful for conditions related to Kidney deficiency affecting the lower back. A classic pairing is with BL23 for chronic low back pain.

Frequently asked questions

Where is Shiqizhui located?

Shiqizhui is located on the posterior midline, below the spinous process of the fifth lumbar vertebra (L5).

What is Shiqizhui used for?

Shiqizhui activates blood and dispels stasis, strengthens the back and benefits the Kidneys. Common clinical indications include lumbar pain, thigh pain, paralysis of lower extremities, irregular menstruation, dysmenorrhea.

How is Shiqizhui needled?

Perpendicular insertion 0.5-1.5 cun. Caution for spinal canal. Caution: ⚠ Spinal cord deep to this point: oblique/limited depth; never deep perpendicular at the midline.

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.