Extra points

EX-B-2 (Jiájǐ, 夹脊) — Spine-Flanking (Huatuojiaji)

View this point in the 3D atlas
Meridian
Extra points (EX)
Anatomical view
posterior
Point classification
Huatuojiaji; group of 17 paired points from T1 to L5.
Depth reference
Perpendicular or oblique insertion 0.3-0.8 cun toward the spine.
Moxibustion
Suitable for moxibustion.
Reference aliases
EXB-2; Jiaji; 夹脊; Spine-Flanking (Huatuojiaji)

Anatomical location

On the back, a bilateral group of 17 points on each side, 0.5 cun lateral to the lower border of each spinous process from T1 to L5 (34 points total).

Traditional actions

Regulates the zang-fu, harmonizes qi and blood and treats disorders along the spine.

Recorded indications

Primary: Disorders of corresponding organs; back and spinal pain; upper-thoracic points for chest/lung, lumbar points for lower-limb and abdominal disorders

Secondary: Cough; asthma; gastrointestinal disorders; sciatica; paralysis

How to read this reference

AcuAtlas separates anatomical location, traditional classification, recorded actions, indications, insertion-depth references, and moxibustion notes because these fields answer different study questions. The location statement is the orientation anchor. The classification and actions describe traditional reference categories, while indications summarize how checked educational sources associate the point with established teaching material. They are not a recommendation to select or stimulate the point.

Depth and moxibustion entries are reproduced as bounded reference notes rather than procedural instructions. Individual anatomy, technique, angle, clinical setting, and local professional standards can change what is appropriate. Review the cited documents and supervised training material before using any technical field. The normalized map coordinate is included only to place the point on the matching AcuAtlas body plate; it is not a substitute for palpation or anatomical assessment.

Sources

References displayed on this page were recorded with the point dataset.

  1. WHO Standard Acupuncture Point Locations in the Western Pacific Region EX-B2
  2. Deadman P. A Manual of Acupuncture Extra points

Frequently asked questions

Where is EX-B-2 located?

On the back, a bilateral group of 17 points on each side, 0.5 cun lateral to the lower border of each spinous process from T1 to L5 (34 points total).

What reference actions and indications are recorded for EX-B-2?

Regulates the zang-fu, harmonizes qi and blood and treats disorders along the spine. The dataset lists these primary indications: Disorders of corresponding organs; back and spinal pain; upper-thoracic points for chest/lung, lumbar points for lower-limb and abdominal disorders Secondary indications are recorded as: Cough; asthma; gastrointestinal disorders; sciatica; paralysis

Is EX-B-2 safe during pregnancy?

This dataset does not identify EX-B-2 as one of its five mandatory pregnancy-caution points. That is not a declaration of safety. Pregnancy-related point selection requires individualized assessment by a qualified clinician.