AcuNavi· Acupoint MapAll 361 points › Pericardium Meridian
Pericardium MeridianPC5

Jianshi 間使

For reference only · not a substitute for diagnosis or treatment
Short answer

Front of the forearm, 3 cun above the palm-side wrist crease, between the palmaris longus and flexor carpi radialis tendons.

Jing-river point (Metal)
See it in 3DRotate the body and peel back the skin to see the bones and muscles beneath.
Open the 3D Acupoint Map →

🖼See it in pictures

Jianshi — ① Where on the body?
① Where on the body?
Jianshi — Textbook view — skin on the left, muscle and bone underneath on the right
Textbook view — skin on the left, muscle and bone underneath on the right
Location and structures come from our 3D model; only the drawing style was refined with AI. Labels are added by us.
Jianshi — ② Up close
② Up close
Jianshi — ③ Under the skin
③ Under the skin
Palmaris longus muscle · Flexor carpi radialis · Flexor digitorum superficialis

Rendered straight from the 3D model at the computed location. The glowing ring marks Jianshi.

On this page
  1. Where is Jianshi?
  2. How do I find it on my body?
  3. Before you press
  4. How has it been used traditionally?
  5. Classical text
  6. FAQ

1Where is Jianshi?

Front of the forearm, 3 cun above the palm-side wrist crease, between the palmaris longus and flexor carpi radialis tendons.

Beneath the point

Palmaris longus muscle · Flexor carpi radialis · Flexor digitorum superficialis

Our 3D measurement · In our 3D model: 3 cun (64.5 mm; 1 forearm cun = 21.49 mm) above the wrist crease, midway between the edges of the palmaris longus and flexor carpi radialis.

2How do I find it on my body?

  1. Make a fist, turn the palm up and bend the elbow a little.
  2. Find the two tendons standing out in the middle of the wrist (palmaris longus and flexor carpi radialis).
  3. From PC7, go 3 cun toward the elbow (one quarter of the 12-cun wrist-to-elbow span).
  4. Press between the two tendons.
  5. No palmaris longus tendon (not rare)? Use the spot just on the little-finger side of the flexor carpi radialis tendon.
What is a “cun”?
What is a “cun”?

A cun is a body-scaled unit of length. The precise way is to divide a bone length into equal parts (proportional bone cun); finger widths are a quick estimate.

📖 Words explained
flexor digitorum superficialis
A wide muscle in the middle layer of the palm side of the forearm. It bends the middle joints of the four fingers.
flexor carpi radialis
A forearm muscle running from the inner elbow to the second metacarpal that bends the wrist and tilts it toward the thumb. Flex the wrist and its tendon stands out like a cord a little to the thumb side of the middle of the wrist crease.
palmaris longus
A thin muscle down the middle of the palm side of the forearm, missing in quite a few people. Touch thumb and little fingertips together and bend the wrist slightly: the thin tendon standing out most in the middle of the wrist is this one.
wrist crease
The horizontal crease that forms at the wrist when it is slightly bent. There is one on the palm side and one on the back, and they are starting lines for measuring arm points.
median nerve
The nerve running down the middle of the arm, through the center of the palm side of the wrist into the palm. It handles feeling on the thumb-side palm and movement of the thumb muscles.

3Before you press

⚠ Do not press when
  • The median nerve runs deep between the two tendons.
  • Ease off if the fingers tingle.
  • Avoid broken or swollen skin and press only to a comfortable level.
  • Acupressure is not a substitute for medical care.
  • Crushing chest pain, breathlessness or a cold sweat can signal a heart emergency — call emergency services at once; do not try acupressure.

4How has it been used traditionally?

From traditional texts — not a claim of effect.

5Classical text

Donguibogam (Heo Jun, 1613), Acupuncture and Moxibustion, "Jianshi"

在掌後三寸兩筋間陷中《銅人》
在大陵後三寸又云去腕三寸《入門》
手厥陰脈之所行爲經 …《銅人》
靈樞云在兩筋之間三寸之中也有過則至無過則止註云其穴有大絡爲限故入絡過腧掌後正勞宮後三寸寸止處是穴故曰有過則至無過則止《綱目》

  1. ①Behind the palm, 3 cun up, in the hollow between the two tendons. Tongren Shuxue Zhenjiu Tujing
  2. ②3 cun behind Daling (PC7), or 3 cun from the wrist. Yixue Rumen
  3. ③Where the Hand Jueyin channel moves along, which makes it the Jing-river point. Tongren Shuxue Zhenjiu Tujing
  4. ④The Lingshu places it between the two tendons, within three cun, and adds 'when there is a fault it arrives; without a fault it stops'. A commentary explains that a large network vessel marks the spot, which lies three cun straight back from Laogong behind the palm. Yixue Gangmu

Original text as written · translation is ours.

?FAQ

Where exactly is Jianshi?

Front of the forearm, 3 cun above the palm-side wrist crease, between the palmaris longus and flexor carpi radialis tendons.

How do I find Jianshi?

Make a fist, turn the palm up and bend the elbow a little. Find the two tendons standing out in the middle of the wrist (palmaris longus and flexor carpi radialis). From PC7, go 3 cun toward the elbow (one quarter of the 12-cun wrist-to-elbow span). Press between the two tendons. No palmaris longus tendon (not rare)? Use the spot just on the little-finger side of the flexor carpi radialis tendon.

What should I watch out for?

The median nerve runs deep between the two tendons. Ease off if the fingers tingle. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care. Crushing chest pain, breathlessness or a cold sweat can signal a heart emergency — call emergency services at once; do not try acupressure.

← PreviousXimen · PC4Next →Neiguan · PC6
Sources

Positions computed from the WHO standard locations (2008) on Z-Anatomy (CC BY-SA 4.0) · BodyParts3D © DBCLS. For reference only — not a substitute for diagnosis or treatment. See a clinician if you are unwell.