Deficiency of the yin of the liver and kidney

Clinical manifestations : Dizziness, blurring of vision, dryness of the throat, tinnitus ; heat sensation in the chest, palms and soles ; soreness and weakness of the lumbar region and knee joints ; malar flush, night sweating ; nocturnal emission ; scanty menstrual flow ; a red tongue with little coating and a thready, rapid pulse.

Etiology and pathology : This syndrome is often due to drastic emotional changes and overstrain and stress which injure yin blood ; or to a prolonged illness which consumes the yin of the liver and kidney. Deficiency of the yin of the liver and kidney deprives the head and eyes of nourishment and thus produces dizziness, blurring of vision and tinnitus. Deficiency of yin produces endogenous heat and thus results in heat sensation in the chest, palms and soles, malar flush, night sweating, dryness of the throat, a red tongue with little coating and a thready, rapid pulse. Disturbance by deficiency type fire in the interior causes nocturnal emission. Deficiency of the yin of the liver and kidney leads to a disturbance of the regulation of the Chong and Ren Meridians, hence the scanty menstrual flow.