SP-12 (Chong Men) Surging Gate

What does SP-12 Chong Men do?

SP-12 invigorates blood, regulates qi and alleviates pain, and drains damp, clears heat and regulates urination — a groin point where three channels meet, sitting right beside the pulsating artery its name refers to.

• Invigorates blood, regulates qi and alleviates pain — the qi-and-blood action, behind its use for abdominal pain and hernia
• Drains damp, clears heat and regulates urination — the damp-heat action of the lower jiao

A three-channel, extraordinary-vessel meeting point. Our record classifies SP-12 as a Meeting Point of the Spleen and Liver channels with the Yin Linking (Yin Wei) vessel — a crossing of two leg yin channels and one of the eight extraordinary vessels. That convergence at the groin, where the channels pass from leg to trunk, is the classical account of its reach into both the qi-and-blood and the damp-heat spheres.

The name is the anatomy. “Chong Men” means Surging Gate — and the surging (chong) is the surging pulse of the artery the point sits beside. The external iliac / femoral artery becomes palpable at the groin exactly here, and the point is located lateral to that pulsation. Few point names are this literal: Chong Men is the gate at the surging pulse, and its name is, in effect, its own needling caution.

Source: Sacred Lotus sources & references (channel, classification, action and translation records; the meeting-point classification and the point’s arterial location queried against our own data), cross-referenced against multiple online sources.

What is SP-12 Chong Men used for?

SP-12 is used for abdominal pain, hernia, and difficult urination. Our own indication record is reproduced here in full — a short, focused list.

• Abdominal pain
• Hernia
• Dysuria (difficult or painful urination)

Groin and lower abdomen — the region the point sits in. Abdominal pain and hernia are the qi-and-blood, pain-relieving action at the groin; difficult urination is the damp-heat action of the lower jiao. Every entry belongs to the lower abdomen and groin the point overlies.

An honest note. A hernia — a lump in the groin — requires medical assessment; a hernia that becomes hard, painful, or irreducible is a surgical emergency (strangulation cuts off the blood supply to trapped bowel). Abdominal pain that is severe, sudden or persistent requires assessment. Difficulty passing urine, or an inability to, requires prompt care. This record documents classical use only; it is emphatically not a suggestion to treat a hernia with acupuncture.

A necessary practical note. SP-12 is in the groin crease — a private region — and it sits beside a major artery. Treatment here belongs to a qualified practitioner and calls for the usual standards of consent, draping and conduct.

How it is combined. With SP-13 Fu She just above and LIV-12 Ji Mai nearby in the groin, and with REN-03 Zhong Ji for the urinary indication. All held here.

Source: Sacred Lotus sources & references (indication and action records; the LIV-12, REN-03 and SP-13 records queried from our own data), cross-referenced against multiple online sources.

Where is SP-12 Chong Men located?

SP-12 is in the groin crease, just to the outer side of the femoral pulse, level with the top of the pubic bone.

• At the outer (lateral) end of the inguinal (groin) groove, just above it
• Lateral to the pulsating external iliac / femoral artery — the point is located by the pulse, sitting on its outer side
• Level with the upper border of the pubic symphysis, 3.5 cun lateral to REN-2 Qu Gu on the midline

The artery is the landmark — and that is the point of the name. At the groin the femoral pulse is easily felt in the crease; SP-12 sits just lateral to it, at the level of the top of the pubic bone. Locating the point means first finding the pulse, then placing the point to its outer side — which is precisely why the needling record warns against the vessel. Chong Men, “Surging Gate”, is named for that surging pulse.

On the name. “Chong Men” — Surging Gate, the surging being the arterial pulse beside it, as noted above.

Source: Sacred Lotus sources & references (location and translation records, retained unchanged; the REN-2 record queried from our own data).

• A Manual of Acupuncture (p. 198): 3.5 cun lateral to Qugu REN-2, on the lateral side of the femoral artery.
• Chinese Acupuncture and Moxibustion (p. 160-161): Superior to the lateral end of the inguinal groove, lateral to the pulsating external iliac artery, at the level of the upper border of symphysis pubis, 3.5 cun lateral to Qugu (REN-2).

How is SP-12 Chong Men needled, and why the arterial caution?

Our own record opens with an explicit instruction — “avoid puncturing the artery” — then gives perpendicular insertion of 0.5–1.0 inch, with moxibustion applicable. What follows is a neutral record of what the reference literature documents. It is not instruction, and this page does not teach technique.

• The recorded caution: “avoid puncturing the artery” — carried verbatim, and placed first. SP-12 is one of only nine points in this library whose record carries an explicit arterial caution, counted by reading every needling record (the nine: ST-05, ST-09, ST-42, SP-12, SJ-22, HT-01, LU-08, LU-09 and LI-13). The vessel here is the external iliac / femoral artery, which the point is located directly beside.
• Angle and depth as recorded: perpendicular, 0.5–1.0 inch, placed lateral to the palpated pulse.
• Moxibustion: recorded as applicable — and moxa, needing no puncture, avoids the vessel entirely.
• Regional anatomy: the femoral artery, vein and nerve run through the femoral triangle at the groin; the point sits lateral to the artery; the inguinal ligament and the pubic bone are nearby landmarks.

Why SP-12 is on the caution list. Of all the points near a pulse, SP-12 is among the most literally so — it is located by the femoral pulse and named for it. The caution is not a prohibition but a direction: find the pulse, place the point to its outer side, and keep the needle off the vessel. This is a practitioner’s point, not one for self-treatment.

What is not claimed. No study measuring a safe depth at SP-12 could be located, and none is borrowed; the recorded caution and the palpable pulse stand in its place. No case report naming SP-12 was located.

Source: Sacred Lotus sources & references (needling record, retained unchanged including the arterial caution; the nine arterial cautions enumerated by reading every needling record in our own data), cross-referenced against multiple online sources; regional anatomy from standard anatomical description.

Is there research on SP-12, and what should a reader know?

No trial isolates SP-12. Where the point appears it is one component of a protocol, and a study that includes a point in a protocol is not evidence about that point.

What this page can state with confidence. SP-12 Chong Men (“Surging Gate”) is a groin point and a Meeting Point of the Spleen and Liver channels with the Yin Linking vessel. It is located directly beside the femoral pulse — its name refers to that surging artery — and it is one of only nine points in this library carrying an explicit arterial caution, “avoid puncturing the artery”, verbatim and placed first in its record. Its indications (abdominal pain, hernia, difficult urination) all belong to the lower abdomen and groin.

A safety note that outranks any TCM claim. A groin lump (possible hernia) and difficulty urinating are symptoms to have assessed, not self-treated — and this point sits on a major artery. Both facts point the same way: SP-12 is a practitioner’s point.

A note on searching for it. “SP 12”, “SP-12” and “Chongmen” searches return protocol trials and unrelated material — and “Chongmen” is a common Chinese place and personal name. Any claim attached to this point should be checked against what a study actually used.

Source: Sacred Lotus sources & references (classification, action, location and needling records; the nine arterial cautions and the meeting-point classification queried, against our own data).