Dogs lick your hand to show affection, taste the salt on your skin, or get attention.
Why
- Affection and bonding.
- Taste of salt and scents on your skin.
- Attention seeking.
- Submission or greeting.
- Habit from puppyhood.
Is it safe
Mostly yes. Wash hands after.
Too much
Excessive licking can signal anxiety or boredom.
Training
Redirect with a toy or a command.
See a vet
If licking becomes compulsive.
Social and bonding behavior
Licking begins in puppies, who lick the mother’s face for food and comfort. Adult dogs lick people as a sign of affection, respect or greeting. Licking releases endorphins that calm and comfort a dog.
Taste and information
Human hands carry salt, sweat, food residue, lotion and scent information. A dog’s sense of smell is 10,000 to 100,000 times more sensitive than ours, so licking gives them a wealth of information.
Attention
If you respond with attention, a dog learns that licking works. Dogs also lick to ask for food, play or petting.
Stress
Repetitive licking can be a coping behavior for anxiety, boredom or stress.
Is it safe
Most healthy people can safely let dogs lick their hands, but wash afterwards. Dog saliva can carry bacteria such as Pasteurella, Capnocytophaga canimorsus (which can cause rare, severe infections in people with weak immune systems or no spleen) and Salmonella. Avoid licking open wounds, the face or mouth.
Too much
Excessive licking of people or surfaces can signal anxiety, compulsive behavior, nausea, allergies or neurological problems.
Training
- Teach an alternative behavior such as “sit” or “paw”, and reward it.
- Ignore licking by turning away calmly and rewarding quiet.
- Offer licking mats, puzzle toys or chews.
- Be consistent.
See a vet if
Licking is constant, new or comes with signs of discomfort such as vomiting, drooling, chewing, scratching or lethargy.
Wash up
Wash hands with soap and water after being licked and before eating.
Reasons for hand licking
Dogs lick hands to taste the salt on skin and any food traces, as a greeting, to show affection or to ask for attention. Puppies lick adult dogs’ mouths in submission, and the behavior carries on in play and bonding. Licking releases endorphins that soothe the dog, so some dogs lick when anxious. Dogs may also lick because they learned it gets a reaction or a pat.
Hygiene and when to act
Dog saliva carries bacteria, so wash hands after licking and avoid allowing licks on open wounds or faces, especially for young children and those with weak immune systems. If the licking is constant, directed at surfaces or paws as well, or paired with restlessness, it can be compulsive behavior from boredom or anxiety, or a sign of nausea or allergies. Teach alternatives such as “sit” and a treat, and give chew toys and exercise. See a vet if licking is excessive or the dog is also drooling, vomiting or has skin problems.
Based on data from the American Kennel Club and the CDC
