San Jiao

SJ6

支沟 · Zhigou

Branch Ditch

Forearm point classically paired with stuck stools and rib-side tightness.

Jing-river · Fire point of San Jiao

System

Channel: San Jiao (SJ)
Element: Fire
Yin or yang: yang
Organ system: San Jiao
Region: Shoulder and arm
Limb rule: Hand Shaoyang

Open the San Jiao page

Where it is

On the back of the forearm, about three thumb-widths above the wrist crease, between the bones. One thumb-width above SJ5.

Nearby: Same inter-bone groove as SJ5, a little closer to the elbow.

Traditionally said to

Jing-river and fire point of San Jiao. The point students memorize for constipation in a qi-stuck pattern, and for rib-side discomfort. It does not replace care for a blocked bowel.

What people look up

Digestion Pain relief Local muscle tension Constipation

Acupressure

Press between the bones for 45–60 seconds while sitting, not straining.

When not to press: Severe abdominal pain, vomiting, or no stool with bloating needs medical care, not a forearm press.

About 30–90 seconds is the usual window, unless the step above is shorter. Stop if pain, dizziness, or anything unusual shows up.

Licensed practice only

Needle depth, angle, electroacupuncture

Textbook language for students. Not instructions. A cun is a body-inch on that person, not a ruler inch. Do not needle yourself.

Depth

Common textbook range: about 0.8–1.2 cun perpendicular.

Angle

Perpendicular, between the bones.

Electroacupuncture

Introductory charts rarely assign a standard electroacupuncture setting here. Clinics that use current choose frequency and intensity for that person. No milliamp figure is given, because copying one would be misleading.