HT6 Yin Cleft

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

HT6 (Yinxi, “Yin Cleft”) is the Xi-cleft point of the Heart Channel of Hand-Shaoyin Meridian. It is located on the palmar aspect of the forearm, 0.5 cun proximal to the wrist crease, on the radial side of the flexor carpi ulnaris tendon. It nourishes Heart Yin, stops sweating, calms the spirit.

Location

On the palmar aspect of the forearm, 0.5 cun proximal to the wrist crease, on the radial side of the flexor carpi ulnaris tendon.

Needling

Perpendicular insertion 0.3-0.5 cun.

TCM functions

Nourishes Heart Yin, stops sweating, calms the spirit.

Indications

Night sweats, steaming bone syndrome, palpitations, epistaxis, sudden loss of voice.

Xi-cleft

Clinical notes

HT6, the Xi-cleft point of the Heart meridian, is a powerful point for acute conditions and for nourishing Heart Yin, making it excellent for night sweats, spontaneous sweating, and tidal fever due to Yin deficiency. It is also highly effective for acute cardiac pain, angina, and palpitations, especially when accompanied by anxiety or a feeling of oppression in the chest. Its ability to calm the spirit makes it useful for sudden fright and emotional distress. It is often combined with HT7 for severe anxiety and insomnia.

On the Heart Channel of Hand-Shaoyin channel

HT6 is one of 9 points on the Heart Channel of Hand-Shaoyin Meridian. Nearby points:

Frequently asked questions

Where is HT6 located?

HT6 (Yinxi) is located on the palmar aspect of the forearm, 0.5 cun proximal to the wrist crease, on the radial side of the flexor carpi ulnaris tendon.

What is HT6 used for?

HT6 nourishes Heart Yin, stops sweating, calms the spirit. Common clinical indications include night sweats, steaming bone syndrome, palpitations, epistaxis, sudden loss of voice.

How is HT6 needled?

Perpendicular insertion 0.3-0.5 cun.

Which meridian is HT6 on?

HT6 is a point on the Heart Channel of Hand-Shaoyin Meridian (Shǒu Shàoyīn Xīnjīng).

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.