The Intestines in TCM

The Large Intestine governs the reception of waste from the Small Intestine and controls the transmission and excretion of solid waste through its descending and dispersing functions. Paired with the Lung in a Metal element relationship, it assists the Lung's dispersing function and contributes to wei qi circulation. The Large Intestine opens to the anus and manifests in body hair, sharing control over the skin's pores with the Lung. Its qi normally flows downward, and dysfunction often presents as either excessive retention or uncontrolled discharge.

Common Patterns

Large Intestine Dryness-Heat

Constipation with dry, hard stools, thirst, red tongue with yellow coating

Large Intestine Qi Stagnation

Abdominal distension, irregular bowel movements alternating between constipation and loose stools

Large Intestine Cold

Chronic diarrhea with undigested food, cold limbs, pale tongue with white coating

Large Intestine Damp-Heat

Urgent diarrhea with burning sensation, mucus or blood in stool, yellow greasy tongue coating

Large Intestine Qi Deficiency

Chronic loose stools without urgency, prolapse tendency, fatigue after bowel movements

Large Intestine Fluid Depletion

Chronic constipation in elderly or postpartum, dry mouth, reduced tongue coating

Large Intestine Wind-Damp

Alternating diarrhea and constipation with abdominal cramping, triggered by emotional stress

Key Points

  • Large Intestine patterns often secondary to Spleen qi deficiency or Liver qi stagnation, requiring treatment of root organ
  • LI-4 Hegu contraindicated during pregnancy due to strong descending action that can induce labor
  • Large Intestine channel pathology frequently manifests as shoulder and neck tension, particularly along the deltoid region
  • Timing of bowel movements diagnostically significant: early morning suggests Kidney yang deficiency, afternoon indicates Spleen qi deficiency
  • Large Intestine's Metal element connection means respiratory symptoms often accompany intestinal disorders

Formulas Targeting the Intestines

163 formulas in our catalog

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Other Systems

LiverKidneySpleenLungHeartStomachBladderGallbladderUterus

Frequently Asked Questions

Large Intestine Damp-Heat presents with loose stools containing mucus or blood with burning anal sensation, while Small Intestine Fire manifests as scanty, dark urine with urethral burning and potential hematuria. Small Intestine Fire typically includes more pronounced Heart symptoms like restlessness and mouth ulcers.
ST-25 Tianshu regulates Large Intestine qi flow, ST-37 Shangjuxu specifically treats Large Intestine disorders, and LI-4 Hegu promotes descending function. For severe counterflow with vomiting, add PC-6 Neiguan to redirect qi downward.
Avoid strong tonification in acute damp-heat conditions, active inflammatory bowel disease, or when significant pathogenic factors remain uncleared. First resolve heat, damp, or stagnation before strengthening Large Intestine function.

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