Principal Meridian Yang Ming LI

Large Intestine Meridian

大肠经 | Shǒu Yángmíng Dàcháng Jīng

The Large Intestine Channel of Hand Yang-Ming

Quick Facts

Associated Organ

Large Intestine

Acupuncture Points

20 points

Peak Hours

05:00 - 07:00

Flow Direction

Centripetal (toward torso)

Overview

The Large Intestine Meridian (Hand Yangming) is a primary Yang pathway that runs from the index finger up the arm to the face, ending beside the nose. As the Yang partner of the Lung Meridian, it belongs to the Metal element and governs elimination, detoxification, and the body's ability to let go—both physically and emotionally. This meridian is particularly rich in Qi and Blood, making its points highly effective for clearing heat, reducing inflammation, and treating disorders of the face, teeth, throat, and intestines. Peak activity occurs between 5-7 AM, the optimal time for bowel movements and elimination.

24-Hour Qi Circulation Cycle

Previous in cycle

Lung Meridian

Current Channel

Large Intestine Meridian

05:00 - 07:00

Peak Activity Hours

Next in cycle

Stomach Meridian

Channel Pathways

The Large Intestine Meridian consists of multiple channel systems, each with its own pathway and clinical significance.

Pathway Description

The external pathway: 

  • The Large Intestine Primary Channel originates from Shangyang LI-1, at the radial aspect of the corner of the index finger nail. LI-1 connects to a Lung Primary Channel branch at Lieque LU-7.
  • Running along the radial side of the index finger, it then passes between the first and second metacarpal bones at Hegu LI-4. 
  • It then runs through Yangxi LI-5 at the depression between the tendons of extensor pollicis longus and brevis.
  • Afterwards, it ascends along the lateral aspect of the forearm and reaches Quchi LI-11 at the elbow. 
  • Continuing ascending along the lateral aspect of the upper arm, it arrives at Jianyu LI-15 of the shoulder joint. 
  • From there, it crosses the shoulder and reaches Jugu LI-16 at the depression between the scapular spine and the lateral extremity of the clavicle. 
  • Running in a medial direction, the Channel then passes through Bingfeng SI-12 in the center of the suprascapular fossa.
  • It then arrives at Dazhui DU-14, which is below the 7th spinous process (C7) and also the meeting point for all other 5 Yang Channels. 
  • Finally, it crosses the shoulder and enters the supraclavicular fossa at Quepen ST-12. 

The internal pathway: 

  • From ST-12, the Primary Channel goes internally.
  • It descends through the Lungs, penetrates the diaphragm and finally arrives at the Large Intestine. 
  • According to some books, the internal Primary Channel continues descending to Shangjuxu ST-37 at the lateral aspect of the lower leg. This is the lower He-Sea point of the Large Intestine. 

Branches: 

  • One external branch separates from Quepen ST-12, ascending along the lateral aspect of the neck. It then ascends the cheek, enters the lower gums and curves around the upper lip. After crossing Renzhong DU-26 at the philtrum, it goes to the opposite side of the face and ends at Yingxiang LI-20 next to the nose, which is also the connecting point with the Stomach Channel. 

Five Element Correspondences

Traditional associations of the Large Intestine and its meridian within the Five Element framework.

Emotion

Grief and Sadness

Color

White

Taste

Pungent (Spicy)

Climate

Dryness

Sense Organ

Nose

Tissue

Skin and Body Hair

Manifests In

Skin and Body Hair

Sound

Weeping (Crying)

Body Fluid

Nasal Mucus

Acupuncture Points

Acupuncture points along the Large Intestine Meridian and related points from other channels.

Related Points from Other Channels

Dazhui DU-14

Meeting point where LI primary channel intersects with Governing Vessel and other Yang meridians

LI channel passes through this Stomach point near the mouth

Left and right LI channels cross at this point on the philtrum

Lower He-Sea point of the Large Intestine (on Stomach meridian)

Detailed Information

In-depth information about the Large Intestine Meridian and its clinical significance.

Overview

The Large Intestine Meridian of Hand Yangming (手阳明大肠经) is one of the 12 principal meridians in Traditional Chinese Medicine. It is classified as 'Yangming' meaning 'Bright Yang'—the most active phase of Yang energy. This meridian is interiorly-exteriorly paired with the Lung Meridian, both belonging to the Metal element. According to the Spiritual Pivot (Ling Shu), 'the Yangming channel is abundant in Qi and Blood,' making its points among the most clinically useful for regulating energy throughout the body.

Pathway and Trajectory

Primary Channel: The meridian begins at the radial side of the index finger tip (LI-1 Shangyang), travels along the index finger, passes through the web space between the thumb and index finger (LI-4 Hegu), enters between the tendons of the thumb, continues along the lateral forearm, enters the elbow at LI-11 (Quchi), ascends the lateral upper arm, reaches the shoulder (LI-15 Jianyu), then goes to the seventh cervical vertebra to meet with other Yang meridians at DU-14 (Dazhui). From there, it descends into the supraclavicular fossa, connects with the Lungs, passes through the diaphragm, and belongs to the Large Intestine.

Branch: A branch ascends from the supraclavicular fossa along the neck, through the cheek, enters the lower gums, curves around the upper lip, crosses at the philtrum (DU-26), with left and right sides crossing to opposite sides, ending beside the nose at LI-20 (Yingxiang), where it connects with the Stomach Meridian.

Key Acupuncture Points

  • LI-1 (Shangyang): Jing-Well point; clears heat, benefits throat
  • LI-4 (Hegu): Yuan-Source point; one of the most important points in acupuncture, treats pain, fever, and facial disorders
  • LI-6 (Pianli): Luo-Connecting point; links with Lung channel
  • LI-10 (Shousanli): Regulates intestines, strengthens arm
  • LI-11 (Quchi): He-Sea point; clears heat, cools blood, treats skin conditions and hypertension
  • LI-15 (Jianyu): Benefits shoulder, expels wind
  • LI-20 (Yingxiang): Opens nasal passages, treats sinus conditions

Clinical Applications

The Large Intestine Meridian treats conditions affecting the regions it traverses, including: disorders of the face, cheeks, forehead, eyes, nose, lips, gums, and teeth; removing wind-cold and wind-heat from the exterior; clearing internal heat and 'Yangming fire'; aiding the Lung in its functions; and regulating Qi and Blood in the limbs for conditions like painful obstruction, atrophy, and hemiplegia.

Associated Symptoms

Along the channel: Shoulder and arm pain, tennis elbow, index finger pain, neck stiffness, facial paralysis, toothache, sore throat, nosebleeds, sinusitis, skin rashes and acne.

Organ-related: Constipation, diarrhea, abdominal pain and bloating, borborygmus (intestinal rumbling), dysentery. The meridian also addresses respiratory complaints through its connection with the Lung.

Emotional and Spiritual Aspects

As a Metal element meridian, the Large Intestine relates to the emotion of grief and the process of 'letting go.' Imbalances may manifest as difficulty releasing the past, holding grudges, rigidity in thinking, or inability to process loss. When balanced, this meridian supports healthy boundaries, clear thinking, and the capacity to release what no longer serves us—physically, emotionally, and spiritually.

Related Resources

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