Pattern Knowledge

Lung Yin Deficiency

Lung yin is insufficient and fails to moisten, leading to dry cough, dry throat, and tidal heat in the afternoon.

Pattern

Structured knowledge card

pattern
Definition

The yin fluids of the Lung are deficient.

Clinical Meaning

Typical signs include dry cough with scant sputum, dry mouth and throat, red tongue with scant coat, and a thin rapid pulse.

Pitfall / Exam Tip

Do not diagnose Lung yin deficiency from throat dryness alone; there should be fluid depletion and deficiency-heat signs.