Why does my white dog's skin turn pink?
White dog fur turns red due to staining.
The staining can occur on any color fur, but is most noticeable on white dogs.
The main cause of this reddish discoloring is thought to be prophyrin, a protein found in body fluids such as tears and saliva.
Dogs also lick because they like the taste of an owner's salty skin and out of habit.
Mostly, with domestic Dogs, it's a sign of affection.
Licking releases pleasurable endorphins which gives Dogs a feeling of comfort and pleasure — like the feeling people get when they are biting their nails — it relieves stress.
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