SP-8 (Dìjī, 地机) — Earth Pivot

Anatomical location

On the medial leg, immediately posterior to the medial border of the tibia and 3 cun below SP-9, at the junction of the upper one third and lower two thirds of the line from the patellar apex to the medial malleolus.

Traditional actions

Regulates blood and menstruation; relieves acute pain; strengthens the Spleen and clears dampness.

Recorded indications

Primary: Acute menstrual pain; irregular bleeding; abdominal pain; diarrhoea.

Secondary: Urinary difficulty; oedema; medial leg discomfort.

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.