Tongue state
Blue-Green Tongue
Schematic illustration, not a photograph
Schematic illustration, not a photograph.
Description
Tongue a dark blue-green, resembling the tongue of a water buffalo, with a moist-slippery white coating that may appear grayish.
Significance
Indicates cold congealing the channels or severe blood stasis; yang fails to reach the periphery and blood flow stagnates—usually a serious or critical condition.
Take a tongue photo and see which pattern is closest.
Open tongue check