Dog_tongue

: The tongue appears very long, thick, and bright red. It may start to curl up at the edges or hang limp to the side. Health Indicator (Tongue Colors)

: Breeds like the Chow Chow and Shar-Pei naturally have blue-black or lavender-tinted tongues. dog_tongue

: The tongue is mostly inside the mouth or poking out only slightly. It is of equal width throughout. : The tongue appears very long, thick, and bright red

: The tongue hangs out long and wide, often taking on a "spoon" or "spatula" shape at the end. Panting becomes heavy and rapid. : The tongue is mostly inside the mouth

: Light panting begins. The tongue may hang out a little to help moisture evaporate and carry heat away.

: Often a sign of heatstroke, toxin exposure, or heart/lung disease.

A healthy tongue should be a consistent and moist. Other colors can indicate underlying issues: