Pathology of the Lungs
Lungs Yin Deficiency
Lungs Yin Deficiency impairs the moistening function. Signs of Dryness manifest. Lungs Yin Deficiency can be considered to be a result and further complication of Dryness in the Lungs.

Cardinal symptoms Dry cough, dry skin, dry throat, itching in the throat, night sweating, five center heat, hoarse voice
TCM Information Symptoms, causes, treatment tips, root and branch, point-combination

Pathogenesis of selected symptoms Dry cough or cough with scant sticky sputum Dry cough or cough with scant sticky sputum originates because the Lungs is not moistened sufficiently. Hoarse voice Hoarse voice originates because the Lungs doesn't moisten the throat sufficiently. Dry throat Dry throat originates because the Lungs doesn't moisten the throat sufficiently. Dry mouth, throat, and nose A dry mouth, throat or nose originates because the Lungs's moistening function is impaired. Dry skin Dry skin originates because the Lungs moistening function is impaired. Bloody sputum Bloody sputum originates because the blood vessels are damaged by the Heat in the Lungs. Night sweat At night, the Defense-Wei-Qi that circulates in the body surface during the day moves back in the Yin organs. In Yin Deficiency, Heat inside the body is increased. At night, this Heat is even strengthened by the Defense-Wei-Qi inside the body, so that the Body Fluids are driven out of the body in the form of sweat.