Kidney meridian

KI-4 (Dàzhōng, 大钟) — Great Bell

Meridian
Kidney (KI)
Anatomical view
anterior
Point classification
Luo-connecting point of the Kidney channel.
Depth reference
0.3–0.5 cun perpendicular
Moxibustion
Not established in checked sources
Reference aliases
KI4; Dazhong; 大钟; Great Bell

Anatomical location

On the medial foot, behind and below the medial malleolus, above the calcaneus and just anterior to the medial attachment of the Achilles tendon.

Traditional actions

Reinforces Kidney function; steadies the will; eases the heel and ankle.

Recorded indications

Primary: Urinary retention; enuresis; heel pain; shortness of breath.

Secondary: Constipation; coughing blood.

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 KI4, p. 137
  2. Acupuncture.com Acupuncture Point Reference Kidney 4; classification, functions, indications and needling

Frequently asked questions

Where is KI-4 located?

On the medial foot, behind and below the medial malleolus, above the calcaneus and just anterior to the medial attachment of the Achilles tendon.

What reference actions and indications are recorded for KI-4?

Reinforces Kidney function; steadies the will; eases the heel and ankle. The dataset lists these primary indications: Urinary retention; enuresis; heel pain; shortness of breath. Secondary indications are recorded as: Constipation; coughing blood.

Is KI-4 safe during pregnancy?

This dataset does not identify KI-4 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.