Daoyi
Tongue state

Scorched-Black Dry Coating

Schematic illustration, not a photograph

Schematic illustration, not a photograph.

Description

Coating scorched-black like coal, dry and cracked, sometimes covered with prickles; tongue body usually crimson and dry.

Significance

Indicates extreme heat consuming yin with exhaustion of kidney water; a critical sign demanding a guarded prognosis.

Related tongue states

Take a tongue photo and see which pattern is closest.

Open tongue check