KI3 Great Stream

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

KI3 (Taixi, “Great Stream”) is the Shu-Stream (Earth) point of the Kidney Channel Meridian. It is located on the medial aspect of the ankle, in the depression posterior to the medial malleolus, anterior to the attachment of the Achilles tendon. It strengthens the Kidneys, nourishes Yin, regulates the lower jiao.

Location

On the medial aspect of the ankle, in the depression posterior to the medial malleolus, anterior to the attachment of the Achilles tendon.

Needling

Perpendicular insertion 0.5-1.0 cun.

TCM functions

Strengthens the Kidneys, nourishes Yin, regulates the lower jiao.

Indications

Lumbar pain, tinnitus, dizziness, insomnia, impotence, frequent urination.

Shu-Stream (Earth)Yuan-source

Clinical notes

KI3 is the Yuan-source and Shu-Stream (Earth) point of the Kidney meridian, making it profoundly effective for tonifying all aspects of Kidney Qi, Yin, and Yang. It is a foundational point for chronic lower back pain, tinnitus, dizziness, and reproductive issues due to Kidney deficiency. Its ability to nourish Kidney Yin makes it crucial for conditions like night sweats and dry throat. KI3 is frequently paired with BL23 (Shenshu) to powerfully strengthen the Kidneys.

On the Kidney Channel channel

KI3 is one of 27 points on the Kidney Channel Meridian. Nearby points:

Frequently asked questions

Where is KI3 located?

KI3 (Taixi) is located on the medial aspect of the ankle, in the depression posterior to the medial malleolus, anterior to the attachment of the Achilles tendon.

What is KI3 used for?

KI3 strengthens the Kidneys, nourishes Yin, regulates the lower jiao. Common clinical indications include lumbar pain, tinnitus, dizziness, insomnia, impotence, frequent urination.

How is KI3 needled?

Perpendicular insertion 0.5-1.0 cun.

Which meridian is KI3 on?

KI3 is a point on the Kidney Channel Meridian (Zú Shàoyīn Shènjīng).

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.