Jimai 急脈
In the groin, 2.5 B-cun out from the front midline.
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Superficial external pudendal artery · Femoral artery · Pectineus muscle · Femoral vein
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On this page
1Where is Jimai?
In the groin, 2.5 B-cun out from the front midline.
It is level with the top edge of the pubic symphysis.
Superficial external pudendal artery · Femoral artery · Pectineus muscle · Femoral vein
2How do I find it on my body?
- Find the top edge of the pubic symphysis, the hard bone at the bottom of the lower abdomen.
- At that height, measure 2.5 B-cun out from the front midline. For this width, the distance between the nipples counts as 8 B-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.
- superficial external pudendal artery
- A thin branch of the femoral artery that runs below the groin to the skin of the external genitals.
- femoral artery
- The large artery of the leg that passes under the inguinal ligament into the thigh. Press the middle of the groin and you feel a strong pulse.
- femoral vein
- The large vein of the leg lying just inside the femoral artery. It collects blood from the leg and sends it up into the belly.
- 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.
- lower abdomen
- The belly below the navel, down to the pubic bone.
3Before you press
- It lies right beside the femoral artery and vein (CCAOM list of points over major vessels), so do not press hard or for long where you feel a pulse.
- 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 means 'urgent pulse', pointing to the pulse felt here. It carries no special category in the classical lists.
From traditional texts — not a claim of effect.
?FAQ
Where exactly is Jimai?
In the groin, 2.5 B-cun out from the front midline. It is level with the top edge of the pubic symphysis.
How do I find Jimai?
Find the top edge of the pubic symphysis, the hard bone at the bottom of the lower abdomen. At that height, measure 2.5 B-cun out from the front midline. For this width, the distance between the nipples counts as 8 B-cun. it is 0.5 B-cun further out than ST30 (2 B-cun).
What should I watch out for?
It lies right beside the femoral artery and vein (CCAOM list of points over major vessels), so do not press hard or for long where you feel a pulse. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.
Sources
- Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 201
- Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points)
- Traditional-use cross-check: AcuAtlas dataset (CC BY 4.0)
- Safety: CCAOM Clean Needle Technique Manual, 7th ed. (rev. 2024), p. 5
- 3D: computed on Z-Anatomy (CC BY-SA 4.0) · BodyParts3D © DBCLS
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.