LU5 (Chize, “Cubit Marsh”) is the He-Sea Point point of the Lung Channel of Hand Taiyin Meridian. It is located on the transverse cubital crease of the elbow, in the depression just to the radial side of the biceps brachii tendon. This point is found with the elbow slightly flexed. It clears Lung heat, descends rebellious Lung Qi, regulates the water passages, relaxes the sinews and alleviates pain.
On the transverse cubital crease of the elbow, in the depression just to the radial side of the biceps brachii tendon. This point is found with the elbow slightly flexed.
Perpendicular insertion 0.5 to 1.0 cun. The brachial artery and median nerve are medial to the point, so care must be taken to avoid them. It is also common to prick this point to bleed for acute, excess heat conditions.
Clears Lung heat, descends rebellious Lung Qi, regulates the water passages, relaxes the sinews and alleviates pain.
Cough, rebellious Qi, shortness of breath, asthma, dry tongue, vexation, heart pain, fullness in the chest, shoulder and back pain, cold in the shoulder and back, wind-damp impediment (bi), elbow contraction, arm pain making it difficult to raise, vomiting, diarrhea, cholera with vomiting and diarrhea, sudden turmoil disorder, abdominal swelling, frequent urination and yawning, changes in urine color, sudden incontinence, infantile convulsions (slow), epilepsy, sadness and desire to cry, heat in the palms, spitting up turbid fluids, throat impediment, mouth and tongue dryness, tidal fevers, wind stroke, arm coldness, pain in the costal region, muscle spasms, pain in the lumbar spine and back, inability to lift the arm to the head.
As the He-Sea and Water point of the Lung channel, Chize is a primary point for clearing all forms of heat from the Lungs and descending rebellious Lung Qi. It is classically indicated for acute conditions like cough, asthma, and spitting blood, as well as for resolving phlegm-heat. Its ability to regulate the water passages makes it useful for edema and urinary issues, while its location on the arm addresses local pain, contraction, and inability to raise the arm.
Classical text; the translation was prepared with AI and is not clinical advice.
《針灸大成》 Zhēnjiǔ Dàchéng — Great Compendium of Acupuncture & Moxibustion, 1601 · 卷十 · Source: Wikisource ↗
尺澤 在肘中約紋上，兩間動脈，針三分，不宜深，灸五壯It is located on the elbow crease, between the pulsing vessels, according to this text; it is needled 3 fen, not deeply, with 5 moxa cones.
《針方六集》 Zhēnfāng Liùjí — Six Collections on Needling, Wu Kun, 1618 · 卷之六·兼羅集 · 兩肘拘攣三十一 · Source: jicheng.tw ↗
尺澤，穴在手肘腕中，大筋外，小筋內陷中。 手屈如弓，方可針。 針入五分，先補後瀉。 禁灸According to this text, LU5 lies in the elbow crease, lateral to the large tendon and medial to the small tendon in a depression; it may be needled only with the arm bent like a bow, 5 fen deep, first tonifying then draining, and moxibustion is forbidden.
《神灸經綸》 Shénjiǔ Jīnglún — Principles of Divine Moxibustion, Wu Yiding, 1851 · 卷之二 · 十二經脈起止 · 肺經十一穴分寸 · Source: jicheng.tw ↗
尺澤 從俠白穴下行肘中約紋上屈肘橫紋筋骨罅中動脈應手灸三壯五壯 甄權云臂屈伸橫紋間筋骨罅中不宜灸According to this text, LU5 lies on the elbow crease below Xiabai, in the gap between tendon and bone where a pulse is felt with the elbow bent, and receives 3 or 5 moxa cones; it adds that Zhen Quan considered moxibustion unsuitable there.
《針灸甲乙經》 Zhēnjiǔ Jiǎyǐ Jīng — Systematic Classic of Acupuncture & Moxibustion, c. 256–282 · 卷07 · Source: Wikisource ↗
振寒瘈瘲，手不伸，咳嗽唾濁，氣鬲善嘔，鼓頷，不得汗，煩滿（《千金》作煩心身痛），因為衄，尺澤主之The text records that LU5 was used for shivering with cold and convulsions, inability to extend the hand, cough with turbid spittle, diaphragm qi with frequent vomiting, chattering jaw, absence of sweating, vexation and fullness, and resulting nosebleed.
LU5 is one of 11 points on the Lung Channel of Hand Taiyin Meridian. Nearby points:
LU5 (Chize) is located on the transverse cubital crease of the elbow, in the depression just to the radial side of the biceps brachii tendon. This point is found with the elbow slightly flexed.
LU5 clears Lung heat, descends rebellious Lung Qi, regulates the water passages, relaxes the sinews and alleviates pain. Common clinical indications include cough, rebellious Qi, shortness of breath, asthma, dry tongue, vexation, heart pain, fullness in the chest, shoulder and back pain, cold in the shoulder and back, wind-damp impediment (bi), elbow contraction, arm pain making it difficult to raise, vomiting, diarrhea, cholera with vomiting and diarrhea, sudden turmoil disorder, abdominal swelling, frequent urination and yawning, changes in urine color, sudden incontinence, infantile convulsions (slow), epilepsy, sadness and desire to cry, heat in the palms, spitting up turbid fluids, throat impediment, mouth and tongue dryness, tidal fevers, wind stroke, arm coldness, pain in the costal region, muscle spasms, pain in the lumbar spine and back, inability to lift the arm to the head.
Perpendicular insertion 0.5 to 1.0 cun. The brachial artery and median nerve are medial to the point, so care must be taken to avoid them. It is also common to prick this point to bleed for acute, excess heat conditions. Caution: The Suwen warns that needling too deeply into the depression of the elbow can cause the Qi to collect there, resulting in an inability to flex and extend the arm. The brachial artery lies just medial to this point.
LU5 is a point on the Lung Channel of Hand Taiyin Meridian (Shǒu Tàiyīn Fèijīng).