Why Does My Dog Lick My Arm? The 6 Reasons Behind This Behavior


As a dog owner, you may have noticed that your furry friend often gives your arm a lick, especially when you’re giving them some attention or affection. This behavior can be endearing, but have you ever wondered why dogs do this? In this article, we will explore the various reasons why dogs lick arms and whether it’s something to be concerned about.

Why Did My Dog Lick My Arm When I Pet Her?

Licking is a normal behavior for dogs, which they learn from their mother soon after birth. Mother dogs lick their puppies to clean them and promote bonding. When puppies grow up, they continue to lick their mothers as a way of communication. Similarly, when your adult dog licks your arm, it’s their way of communicating with you, just as they would with other dogs.

1. Arm Licking for Affection

Most dog owners interpret the long, slobbery licks as their dogs’ way of giving kisses and showing affection. When your dog licks your arm, it is their way of expressing love and missing you. The natural response is to reciprocate the affection by showering them with love and attention. This creates a cycle of affectionate behavior between you and your dog.

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2. Arm Licking for Attention

Pay attention to when your dog licks your arm. If they do it after a period of not receiving attention or when you’ve been away, it’s their way of asking for playtime or interaction. When you respond positively to their licks, you reinforce this behavior.

3. Arm Licking to Groom You

Dogs instinctively groom themselves, and if your dog licks your arm frequently, it could be because they are trying to groom you. This behavior is learned from their mother and littermates. So when your dog licks your arm before going to sleep, it’s a remnant of their puppyhood grooming behavior.

4. Arm Licking Because You Taste Good

Dogs explore the world through licking and sniffing. When they lick your arm, it could be because the salt in your sweat tastes good to them. Additionally, small, pointed licks on your arm may signify curiosity and exploration. However, it’s essential to avoid letting your dog lick your mouth, as that can pose health risks.

5. Arm Licking for Empathy

Studies have shown that some dogs lick and sniff their owners when they’re upset or crying. When your dog licks your arm, it could be their way of gauging your emotions and offering comfort and sympathy. This behavior is more common in dogs with a close bond to their owners.

6. Arm Licking as a Sign of Submission

In the wild, wolves lick the snouts of their pack leaders as a sign of submission and obedience. Similarly, when your dog licks your hand, they’re expressing their subservience to you and welcoming you back into their “pack.”

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Should You Let Your Dog Lick You?

In general, a dog licking your arm is not harmful, particularly if it’s limited to your arms and hands. However, it’s crucial to wash off their saliva thoroughly, especially after they’ve licked you, to avoid the potential transfer of bacteria. Avoid letting your dog lick your mouth, as it can pose health risks, especially for immunocompromised individuals. Additionally, if your dog has any open wounds or is unwell, it’s best to prevent them from licking any part of your body.

Is Excessive Licking a Problem?

While occasional licking is normal, excessive licking can indicate underlying issues such as anxiety, pain, or allergies. If your dog is constantly licking objects, themselves, or you, it’s worth observing their behavior closely and looking for other signs of illness. Excessive licking of paws might be a result of parasites or fungal infections. If you notice any concerning signs, it’s advisable to consult a veterinarian for a thorough examination.


When your dog licks your arm, it’s primarily a behavioral response rather than a sign of a serious health condition. Dogs lick humans as a learned and inherited behavior that signifies affection and obedience. You can choose to reward or discourage this behavior based on your preference and tolerance. Just remember to wash off their saliva after contact and be mindful of your dog’s overall well-being. Ultimately, it’s all about fostering a loving and responsible relationship with your furry companion.

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