In TCM theory, a channel (meridian) links an internal organ system with a line of points on the surface of the body.

In TCM, the Small Intestine channel is paired with the Heart channel. Traditional teaching describes the Small Intestine as separating the clear from the turbid: keeping what nourishes and passing on the rest. Its course over the shoulder blade and neck links it with those areas.

Meridian Pathway & Flow

Direction

From the hand to the face (SI-1 to SI-19)

Pathway

Starts: SI-1, at the corner of the little fingernail on the outer side
Hand and arm: Along the little-finger edge of the hand, then up the back of the forearm and upper arm
Shoulder: Zigzags across the shoulder blade
Neck and face: Up the side of the neck to the cheek
Ends: SI-19, in front of the small flap at the front of the ear (the tragus)
Internal course (TCM theory): Connects with the heart, the stomach and the small intestine
Next channel (TCM theory): Links to the Bladder channel at BL-1 at the inner corner of the eye

Traditional Organ-Clock Time

1–3 PM

SI Small Intestine Meridian pathway illustration

Traditional Functions (TCM)

The Small Intestine in TCM theory

Separates the clear from the turbid
Is linked with the neck, shoulder and upper back along its course
Is linked with the ears and hearing

Essential Acupoints

Select a point to see its location, how to find it, and its traditional uses.

Traditional Applications

In TCM, points on this channel are traditionally used for

Neck pain and stiffness
Shoulder and shoulder-blade pain
Wrist and hand pain
Tinnitus
Headache at the back of the head

SI Routines

Small Intestine Channel Routine (5 minutes)

Sit upright with shoulders relaxed
Press SI-3 for 30 seconds on each hand
Press SI-11 for 30 seconds on each side, or ask someone to press it for you
Press SI-14 and SI-15 for 30 seconds each on each side
Finish with slow neck rolls and shoulder rolls

All SI Points