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 transverse wrist crease (the location of HT7), on the radial side of the flexor carpi ulnaris tendon. It calms the Spirit, clears deficiency Fire, and stops sweating.

Location

On the palmar aspect of the forearm, 0.5 cun proximal to the transverse wrist crease (the location of HT7), on the radial side of the flexor carpi ulnaris tendon.

Needling

Perpendicular or slightly oblique proximal insertion, 0.3-0.5 cun deep, avoiding the ulnar artery and nerve.

TCM functions

Calms the Spirit, clears deficiency Fire, and stops sweating..

Indications

Chest pain, fullness in the chest and hypochondrium, inability to bend forward or backward, difficulty swallowing, excessive thirst, coughing up foul-smelling pus, rebellious cough with excessive saliva, heart pain, fright palpitations, bone-steam fever, night sweats, sudden loss of voice, nosebleed, vomiting blood..

Xi-Cleft

Clinical notes

As the Xi-Cleft point of the Heart channel, Yinxi is a primary point for acute conditions involving Heart Blood and Yin. It is particularly noted for treating severe, sharp, or stabbing chest pain (Heart pain) and for addressing night sweats that arise from Yin deficiency with empty heat. Its ability to clear deficiency fire also makes it useful for calming the spirit in cases of anxiety and palpitations rooted in Yin deficiency.

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 transverse wrist crease (the location of HT7), on the radial side of the flexor carpi ulnaris tendon.

What is HT6 used for?

HT6 calms the Spirit, clears deficiency Fire, and stops sweating. Common clinical indications include chest pain, fullness in the chest and hypochondrium, inability to bend forward or backward, difficulty swallowing, excessive thirst, coughing up foul-smelling pus, rebellious cough with excessive saliva, heart pain, fright palpitations, bone-steam fever, night sweats, sudden loss of voice, nosebleed, vomiting blood.

How is HT6 needled?

Perpendicular or slightly oblique proximal insertion, 0.3-0.5 cun deep, avoiding the ulnar artery and nerve.

Which meridian is HT6 on?

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

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⚠️ 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.