Small Intestine Meridian
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SI-13
Safety Warnings
- Dangerous point - requires extra caution
- Deep needling contraindicated - shallow insertion only
Needle Depth
0.3–0.5 cun
Needle Angle
90° (Perpendicular), 45° (Oblique)
Body Area
Shoulder, Back — Upper (Thoracic)
Location
On the medial extremity of the suprascapular fossa.
Main Actions
- Opens the Channel
- Expels Wind
Indications
Commentary
Like its neighboring point Jianzhen SI-9, Naoshu SI-10, Tianzong SI-11, and Bingfeng SI-12, Quyuan SI-13 is another important local point for shoulder problems that should be checked for sensitivity on palpation. The typical symptoms are the shoulder and scapula pain and the inability to raise arms.
It is better the patients are seated in a relaxed way. This point should be needled first with Reducing Method. Moxa is to be applied afterwards.
In additional to it function of Channel opening, Quyuan SI-13 is also used to expel Wind so as to treat Painful Obstruction Syndrome (Bi Syndrome) in joints.
Classical Sources
Zhenjiu Jiayi Jing (针灸甲乙经 - Systematic Classic of Acupuncture and Moxibustion): Records Quyuan among the Small Intestine channel points, noting its location in the depression at the medial end of the suprascapular fossa, with indications for scapular region pain.
Zhenjiu Dacheng (针灸大成 - Great Compendium of Acupuncture and Moxibustion): Lists Quyuan under the Hand Taiyang Small Intestine channel points, describing its functions for benefiting the sinews and treating shoulder pain and upper limb disorders.
How to Locate
At its medial end, the scapular spine fans out in a deltoid shape, curving round in a superior direction. When palpating, this feels like a ‘crooked wall’, hence its Chinese name. Quyuan SI-13 is located on the scapula, in the slightly concave bend.
Caution
Located near the medial border of the scapula. If the point is located incorrectly (too medially) or if the patient moves their arm after point location, the needle may slip past the scapula into the thoracic cavity, potentially causing pneumothorax. Ensure the patient's shoulder remains still during needling. Needle obliquely toward the lateral-inferior direction rather than perpendicular or medially to avoid puncturing the pleura. Palpate the medial end of the scapular spine carefully before insertion.
Needle Angle
90° (Perpendicular) / 45° (Oblique)
Depth Category
Shallow
Standard Depth
0.3–0.5 cun
Needling Directions
0.5–1 cun vertically or obliquely in a lateral direction. There is no danger of puncturing the pleura if located correctly.
Expected Deqi Sensation
Local aching, distension, or soreness in the scapular region. The sensation may radiate toward the shoulder or along the upper back. A deep, heavy sensation is common due to the muscular nature of the area.
Moxibustion
Recommended
Duration: 10–15 minutes
Cupping
Recommended
Bloodletting
N/A
Gua Sha
Recommended
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