Spleen MeridianSP10

Xuehai 血海

For reference only · not a substitute for diagnosis or treatment

Short answer

2 B-cun above the inner end of the patellar base, on the bulge of the vastus medialis.

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

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

Xuehai — 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.

Xuehai — ③ Under the skin — **③ Under the skin**
Vastus medialis muscle

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

On this page

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

1Where is Xuehai?

2 B-cun above the inner end of the patellar base, on the bulge of the vastus medialis.

It is on the front-inner thigh.

Beneath the point

Vastus medialis muscle

Our 3D measurement · In our 3D model: skin 2 cun (43.3 mm; 1 thigh cun = 21.66 mm, pubic symphysis to patella base = 18 cun) up the thigh axis from the inner end of the patellar base; the vastus medialis lies 3.9 mm beneath.

2How do I find it on my body?

Straighten the knee and find the inner end of the kneecap's upper edge (patellar base).
Taking the pubic symphysis to the patellar base as 18 B-cun, go up 2 B-cun, about two thumb-widths.
Tighten the thigh so the vastus medialis bulges.

Check · the point sits on that bulge.

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

vastus medialis: The teardrop-shaped bulge on the lower inner front of the thigh, above the inner side of the kneecap. It straightens the knee.
pubic symphysis: Where the two pubic bones join with cartilage at the bottom middle of the belly; going straight down from the navel you meet it as a hard bony edge. The center of the navel to its upper edge is taken as 5 cun.

3Before you press

⚠ Do not press when

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 joins xue (blood) and hai (sea). Found by touch where the vastus medialis swells above the inner knee.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Xuehai?

2 B-cun above the inner end of the patellar base, on the bulge of the vastus medialis. It is on the front-inner thigh.

How do I find Xuehai?

Straighten the knee and find the inner end of the kneecap's upper edge (patellar base). Taking the pubic symphysis to the patellar base as 18 B-cun, go up 2 B-cun, about two thumb-widths. Tighten the thigh so the vastus medialis bulges. the point sits on that bulge.

What should I watch out for?

Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.

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Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 74
Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points)
Korean anatomical terms and locating tips: KMCRIC Standard Acupoint DB (Korea)
Classification cross-check: AcuAtlas dataset (CC BY 4.0)

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.