What Studies Show
Research into canine social behavior suggests licking can play multiple roles beyond affection. Dogs
Dogs
A study published in Applied Animal Behaviour Science has noted that dogs use licking as part of social communication and appeasement behaviors, especially in interactions with familiar humans.
Another area of study from veterinary behavior researchers shows repetitive licking may increase when dogs are stressed or trying to calm themselves in unfamiliar situations. Veterinarians
These findings support the idea that licking should be understood together with the dog’s overall body language.
Is It Safe?
Usually casual licking on intact skin is low risk for healthy adults, but dogs’ mouths are not sterile.
Some bacteria can be present, so it’s wise to:
wash after face licking
avoid letting dogs lick open cuts
supervise children
maintain regular pet dental care
When Licking Becomes Excessive
If your dog suddenly starts licking much more than usual, it may signal:
boredom
anxiety
skin irritation
digestive issues
learned attention-seeking
If the change is sudden or obsessive, a veterinarian may help rule out medical causes.
