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.
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.
Perpendicular or oblique insertion 0.2-0.5 cun.
Clears heat, resolves damp-heat, harmonizes the middle jiao, regulates the Spleen, and stops diarrhea.
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.
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.
Classical text; the translation was prepared with AI and is not clinical advice.
《備急千金要方》 Bèijí Qiānjīn Yàofāng — Essential Prescriptions Worth a Thousand Gold for Emergencies, c. 650 · 第二十九 · Source: Wikisource ↗
大都，在足大趾內本節後陷中According to this text, SP2 lies on the inner side of the big toe, in the depression behind the joint.
《神應經》 Shényìng Jīng — Classic of Divine Response, Chen Hui, 1425 · 巳足太阴脾经 · Source: Wikisource ↗
大都 在足大趾本节后内侧，白肉际陷中。 针三分，灸三壮According to this text, SP2 lies on the inner side of the big toe behind the joint, in the depression at the edge of the white skin; needle 0.3 cun, moxibustion 3 cones.
《類經》 Lèijīng — Classified Canon, Zhang Jiebin, 1624 · 二十八卷·运气类 · 三十九、司天不迁正不退位之刺 · Source: Wikisource ↗
土气留滞于上，人病在脾，故当刺足太阴之所流，大都穴也The text records that when earth qi stagnates above and illness lies in the spleen, one should needle the ying-spring point of the foot Taiyin, that is SP2.
《普濟方·針灸門》 Pǔjì Fāng · Zhēnjiǔ Mén — Formulas for Universal Relief: Acupuncture & Moxibustion Section, Zhu Su, 1406 · 卷四百十三 · 針灸門 · 脾 · Source: jicheng.tw ↗
大都（在足大指本節後陷者中。 灸三壯。 主熱病汗不出According to this text, SP2 lies in the depression behind the joint of the big toe, with 3 moxa cones, and was used for febrile disease without sweating.
SP2 is one of 21 points on the Spleen Channel Meridian. Nearby points:
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.
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.
Perpendicular or oblique insertion 0.2-0.5 cun.
SP2 is a point on the Spleen Channel Meridian (Zú Tài Yīn Pí Jīng).