SP2 Great Metropolis

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

SP2 (Dàdū, “Great Metropolis”) is the Ying-Spring Point point of the Spleen Channel Meridian. It is located on the medial aspect of the foot, in the depression distal and inferior to the first metatarsophalangeal joint, at the junction of the red and white skin. It clears heat, resolves damp-heat, harmonizes the middle jiao, regulates the Spleen, and stops diarrhea.

Location

On the medial aspect of the foot, in the depression distal and inferior to the first metatarsophalangeal joint, at the junction of the red and white skin.

Needling

Perpendicular or oblique insertion 0.2-0.5 cun.

TCM functions

Clears heat, resolves damp-heat, harmonizes the middle jiao, regulates the Spleen, and stops diarrhea..

Indications

Heat disease with no sweat, coldness of the hands and feet, abdominal fullness, frequent vomiting, vexation and oppressive heat, dizziness, stomach-heart pain, sudden turmoil disorder (cholera), reversal cold, sudden severe diarrhea, incessant diarrhea, fullness and pain in the heart and abdomen, wind causing reversal and swelling of the four limbs, malaria for which the cause is unknown, lower back pain, eye pain, head pain, toothache, gas and pain in the lower abdomen, constipation..

Ying-Spring PointFire Point

Clinical notes

As the Ying-Spring and Fire point of the Spleen channel, Dadu excels at clearing heat from the Spleen and Stomach. It is a primary point for damp-heat conditions manifesting as abdominal fullness, heaviness of the body, and sudden, foul-smelling diarrhea. Its ability to treat 'heat disease with no sweat' makes it useful in the early stages of febrile diseases where dampness obstructs the exterior. It is also a key distal point for epigastric pain, especially when there are heat signs.

On the Spleen Channel channel

SP2 is one of 21 points on the Spleen Channel Meridian. Nearby points:

Frequently asked questions

Where is SP2 located?

SP2 (Dàdū) is located on the medial aspect of the foot, in the depression distal and inferior to the first metatarsophalangeal joint, at the junction of the red and white skin.

What is SP2 used for?

SP2 clears heat, resolves damp-heat, harmonizes the middle jiao, regulates the Spleen, and stops diarrhea. Common clinical indications include heat disease with no sweat, coldness of the hands and feet, abdominal fullness, frequent vomiting, vexation and oppressive heat, dizziness, stomach-heart pain, sudden turmoil disorder (cholera), reversal cold, sudden severe diarrhea, incessant diarrhea, fullness and pain in the heart and abdomen, wind causing reversal and swelling of the four limbs, malaria for which the cause is unknown, lower back pain, eye pain, head pain, toothache, gas and pain in the lower abdomen, constipation.

How is SP2 needled?

Perpendicular or oblique insertion 0.2-0.5 cun.

Which meridian is SP2 on?

SP2 is a point on the Spleen Channel Meridian (Zú Tài Yīn Pí Jīng).

Interactive body mapConditions & evidenceFind an acupuncturistTCM glossary
⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.