Digestivebiànmì

Constipation

Also called:Hard stoolsDifficulty passing stoolIrregular bowels

From the TCM perspective: TCM 'bian mi' / 'pi yue' / yin-yang bind; located in the large intestine.

Overview

Constipation is infrequent bowel movements with hard dry stool, straining or a sensation of incomplete evacuation. The Shanghan Lun distinguishes 'yin bind' and 'yang bind'. TCM locates it in the large intestine, related to the lung, spleen, stomach, liver and kidney, with patterns of heat bind, qi stagnation, qi deficiency and blood/yin deficiency.

☯Common patterns (syndrome differentiation)

Intestinal heat bind

Key distinguishing signs: Dry hard stool every several days, abdominal pain worse on pressure, dry mouth and bad breath, red face, dark urine, red tongue with dry yellow coat, slippery rapid pulse.
Treatment principle: Clear heat, moisten intestines and unblock the bowel

Qi stagnation

Key distinguishing signs: Constipation with urge but inability to pass, frequent belching, chest/rib fullness, moving bloating, worse with emotional upset, thin greasy coat, wiry pulse.
Treatment principle: Smooth qi, move stagnation and ease defecation

Qi failing to propel

Key distinguishing signs: Stool not very hard, but straining causes fatigue, sweating and short breath, with exhaustion afterward, pale face, pale tongue, weak pulse.
Treatment principle: Tonify qi, strengthen spleen and promote propulsion

Blood/yin deficiency

Key distinguishing signs: Dry pellet-like stool, thin build, dizziness, palpitations, pale lusterless face or dry mouth with vexing heat, red tongue with scant moisture, fine pulse.
Treatment principle: Nourish blood and yin, moisten dryness to ease stool

Daily self-care

Drink enough water, including a warm glass on waking; gradually add vegetables, whole grains and fruit for fiber.
Keep a regular toilet routine without phones; exercise and massage the abdomen clockwise.
Avoid long-term reliance on stimulant laxatives; older adults, pregnant women and persistent cases should seek professional guidance.

When to seek medical help

The following warning signs require prompt medical evaluation — do not rely on self-treatment:

Blood in stool, black stool or markedly narrowed stool: prompt evaluation.
Constipation with severe pain, vomiting or inability to pass gas: emergency (possible obstruction).
Recent change in bowel habits, unintentional weight loss or anemia: seek prompt assessment.

Medical disclaimer: Educational content about traditional Chinese medicine for information only; it is not a diagnosis or treatment and does not replace a qualified clinician. If symptoms worsen or warning signs appear, seek medical care.

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