Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Do Dogs Lick Blood? 6 Possible Vet Approved Reasons

dog injured Wound on paw

It can be concerning when you notice your dog licking the blood from your wound. Not only is a dog licking blood dangerous for the dog, but it can also be dangerous to you. However, there are a few reasons that dogs lick up blood when they see or smell it. We’ll give you six possible reasons your dog licks blood and answer a few common questions in the guide below.

divider dog faces oct 2024

The 6 Reasons Why Dogs Lick Blood

1. Instinct

It’s a dog’s instinct to lick its wounds. Most animals have the same instinct, so whether it’s you, the ground, another dog they get along with, or themselves when a dog smells blood, it’s normal for the dog to lick it.

Licking a wound is beneficial to dogs who live in the wild. After all, they can’t reach the first aid kit, so licking the wound is their way to promote healing, which we’ll discuss in the rest of the guide.

puppy licking a senior dog
Image Credit: HartOfTheSouth, Shutterstock

2. Speeds Healing (In Dogs)

When a dog is bleeding, the first thing they do is lick the wound because the licking speeds the healing for dogs. However, you should never let your dog lick your wounds, as it can lead to diseases and infections.

For the dog, it’s a way to speed up the healing time and clean the wound. However, it’s not the best way to speed up your healing time, so refrain from letting your dog lick your wounds.


3. Pain Relief (In Dogs)

Dogs also lick their wounds as a form of pain relief. The licking releases endorphins, which are a natural pain killer for dogs. The endorphins relieve the pain and make the dog happy, just as they do with humans.

Dogs are the same as humans in this regard. For example, when you hit your elbow on the doorframe, you automatically rub it to relieve the pain.

close up dog licking wound
Image Credit: Wichaiwish, Shutterstock

4. Predator Prevention (In Dogs)

In the wild, predators are attracted to the smell of blood. They will quickly attack weak, injured prey because they are easier to kill. Dogs lick away the blood so predators won’t be drawn to the smell. This is also why female dogs lick the blood away from where they give birth, to protect themselves and their puppies from predators. Predator prevention isn’t needed as much for domestic pets, but the instinct still remains.


5. Interested in the Smell of the Wound (In Humans)

Your dog may be interested in how your wound smells. It’s not necessarily the blood the dog is interested in; it could be the infection and odor the wound is giving off instead. After all, blood contains proteins and sodium, both of which your doggy finds attractive.

Large white Shepherd licking a wound on the knee of a little girl
Image by: Fiery Phoenix, Shutterstock

6. Healing and Cleaning (In Humans)

As you already know, dogs can be very protective of their pet parents. Trying to lick your wound is the dog’s way of cleaning it, keeping you safe from predators, and helping the injury to heal. Though it is a very sweet and caring thing your dog is trying to do, it’s best not to let your dog lick your wounds, as it can make you and your dog sick.

divider dog faces oct 2024

Why Dogs Lick Blood FAQ

Now that you know why a dog licks blood off the ground, on themselves, and even on you if they can, we’ll answer some of the most common questions in the FAQ section below.

Can Dogs Get a Taste for Blood?

It’s long been a popular myth that if your dog licks blood off the ground or licks your blood, it will get a taste for blood and be like a wild dog. There has never been any evidence found that this myth is true.

Dog with licking tongue
Image Credit: Aleksey Boyko, Shutterstock

How Do You Prevent Your Dog from Licking Blood?

While dog saliva does have healing properties, the risks far outweigh the benefits when it comes to letting your dog lick your wounds. You can prevent your dog from licking your wounds by cleaning and covering the injury with a Band-Aid or bandage as soon as it happens. You can also ignore the dog and walk away when it starts to lick you.

The best way to prevent a dog from licking its wounds is to purchase an e-collar which will stop the dog from being able to reach its wounds. If you can’t keep your dog from licking its wounds, it’s best to talk to a vet for further recommendations.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

divider dog faces oct 2024

Final Thoughts

No pet parent wants to think of their dog licking blood off the ground or licking wounds; the thought can make you a bit queasy. However, it helps to know the reasons for this strange behavior. While dog saliva has healing properties, the dangers far outweigh the benefits in this case. You and your dog can get sick from your dog licking your wounds, and some diseases can be transmitted between humans and dogs. The best thing to do is not let your dog lick your wounds but leave the wound healing to the human medicine professionals.


Featured Image Credit: lovelyday12, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.


How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

90 Popular & Unique Irish Wolfhound Names

The Irish Wolfhound is an incredible breed and a centerpiece of Irish history, poetry, music, and art. These wise and independent dogs have...

Finnish Spitz vs Shiba Inu: Differences Explained (With Pictures)

Choosing a dog breed can be a bit of a challenge, considering the number of breeds available. Today, we’ll explore two lesser-known yet...

10 Best Mops for Dog Urine in 2026: Reviews & Top Picks

Dogs are remarkable creatures and make excellent pets. They love you unconditionally and offer unlimited belly rubs! But it is no secret that...

Can Asthma Puffers Be Deadly for Dogs? Our Vet Explains

Did you know that not only can dogs suffer from asthma, but they can also be prescribed asthma puffers to manage their condition?...

More related

Why Is My Dog Coughing Like Something Is Stuck in His Throat? Our Vet Answers

If your dog has started to cough like there is something stuck in his throat and you’ve started to worry, there are several...

Dog Hair vs. Fur: Vet-Verified Differences & How to Treat Them

We use the terms “hair” and “fur” interchangeably when it comes to our pets. Nevertheless, it is one of the defining characteristics of...

Can a Shih Tzu Fly on a Plane (in the Cabin or Underneath)? Tips & FAQ

The Shih Tzu is a small, energetic breed of dog that has been popular among families for generations. They are loyal companions and...

What Is a Wolf Corgi: Is It an Actual Breed?

When we think of Corgis it is only natural to picture the cute shake they offer as they walk away or the elegance...

Keep reading

10 Best High Fiber Dog Foods for Constipation in 2026 – Reviews & Top Picks

If you have a pup who is constantly constipated on your hands, then you’re likely desperate for a solution (especially if nothing you’ve tried thus far seems to have helped). That’s where high fiber dog foods come in. Though it’s...

german shepherd dog lying near food bowl

Kirkland vs Blue Buffalo Dog Food Comparison 2026: Which Is Better?

Choosing the right food for your dog should be simple, right? We get it—with countless brands, endless ingredient lists, and ever-evolving advice on what’s best for each dog, it’s easy to feel overwhelmed. What’s truly healthy for our furry friends?...

Dogster_Dog Food Kirkland VS Blue Buffalo

7 Best Dog Foods for Urinary Health: 2026 Reviews & Top Picks

While urinary health isn’t a very popular subject, it’s critical to your dog’s overall well-being. Kidney stones and urinary tract infections can be very painful and dangerous to your dog. In addition to the trauma on your pup, certain types...

beagle puppy eating from a feeding bowl

What Exotic Fruits Can Dogs Eat? 10 Vet-Verified Safe Options

Unlike cats who are obligate carnivores, dogs are omnivores. In addition to animal-based proteins, they can eat a range of vegetables and fruits, and we don’t just mean your everyday bananas and blueberries, either. Like us, dogs can indulge in...

plateful of mangoes

Do Dogs Need Vitamin E? Vet-Verified Benefits & Risks

Dogs need vitamin E, as it’s an essential nutrient that provides antioxidants that protect against free radical damage. Free radicals are negatively charged atoms released during your dog’s normal metabolic processes. But when dogs or humans are ill or under...

Vitamin E capsules

Vital Essentials Dog Food Review 2026: An Expert’s Breakdown

More and more dog owners are learning about the benefits of a raw food diet for their furry family members. But feeding a raw diet is even harder than it sounds, especially when you consider what it takes to provide...

Vital Essentials Dog Food

10 Best Dog Bowls in Canada in 2026 – Reviews & Top Picks

Shopping for a dog bowl is more challenging than it initially seems. First, you need to find the right size for your dog. With an oversized bowl, your tiny pup will practically have to climb in to eat! And a...

dog with a food bowl

Is Dry Dog Food Bad for Dogs? Vet-Reviewed Pros & Cons

There has been controversy surrounding dry food in the dog food world for years now. Proponents of raw food and fresh food diets argue that dry dog food is unhealthy due to being highly processed, but others have a more...

pouring dog food