Bladder MeridianBL38

Fuxi 浮郄

For reference only · not a substitute for diagnosis or treatment

Short answer

Back of the knee, 1 cun above the knee crease, just on the inner side of the biceps femoris tendon.

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

Fuxi — ① Where on the body? — **① Where on the body?**

Fuxi — 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.

Fuxi — ③ Under the skin — **③ Under the skin**
Long head of biceps femoris · Lateral head of gastrocnemius · Plantaris muscle · Femur

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

On this page

Where is Fuxi?
How do I find it on my body?
Before you press
How has it been used traditionally?
FAQ

1Where is Fuxi?

Back of the knee, 1 cun above the knee crease, just on the inner side of the biceps femoris tendon.

It is 1 cun above Weiyang (BL39).

Beneath the point

Long head of biceps femoris · Lateral head of gastrocnemius · Plantaris muscle · Femur

Our 3D measurement · In our 3D model: 1 cun (24.9 mm) above the knee crease (knee joint-line level), 2 mm inside the medial edge of the biceps femoris tendon.

2How do I find it on my body?

Bend the knee slightly. A thick tendon stands out on the outer side of the back of the knee (biceps femoris tendon).
Where its inner edge meets the knee crease is Weiyang.
Follow the inner edge of the tendon 1 cun up and press there.

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

long head of biceps femoris: The head of biceps femoris that starts from the sitting bone (ischial tuberosity).
lateral head of gastrocnemius: The outer of the two heads of gastrocnemius.
common fibular nerve: A branch of the sciatic nerve that passes the outer back of the knee and wraps around just below the head of the fibula. It lies right under the skin over bone there, so pressure easily makes the outer leg tingle.

3Before you press

⚠ Do not press when

The common fibular nerve runs close to the surface along the inner edge of the biceps femoris tendon.
Do not rub hard.
Stop if tingling spreads to the shin or the top of the foot.
Avoid broken or swollen skin and press only to a comfortable level.
Acupressure is not a substitute for medical care.

4How has it been used traditionally?

The name reads 'superficial cleft' — a shallow gap just above Weiyang.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Fuxi?

Back of the knee, 1 cun above the knee crease, just on the inner side of the biceps femoris tendon. It is 1 cun above Weiyang (BL39).

How do I find Fuxi?

Bend the knee slightly. A thick tendon stands out on the outer side of the back of the knee (biceps femoris tendon). Where its inner edge meets the knee crease is Weiyang. Follow the inner edge of the tendon 1 cun up and press there.

What should I watch out for?

The common fibular nerve runs close to the surface along the inner edge of the biceps femoris tendon. Do not rub hard. Stop if tingling spreads to the shin or the top of the foot. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.

← PreviousYinmen · BL37 Next →Weiyang · BL39

Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 118
Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points), p. 18 — same location
Korean anatomical terms: KMLE medical dictionary
Traditional-use cross-check: AcuAtlas dataset (CC BY 4.0)
Classical record: Zhenjiu Jiayi Jing vol. 3, sec. 35
Safety cross-check: AcuAtlas dataset caution note (common fibular nerve)

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.