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

Share

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

The Crate Setup Most Dog Owners Get Wrong (And How To Fix It!)

Most people assume that if their dog hates the crate, the crate is the problem. So they try a bigger one, a different...

1,500 Beagles Rescued from Wisconsin Lab Farm – Here’s Where They’re Going

You may remember that a few weeks ago, we reported on a tense situation at Ridglan Farms, Wisconsin, a facility infamous for housing...

Dogster’s Weekly Photo Contest Winners: Window Watchers (May 11, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Can a Relationship Work When One Person Doesn’t Like Dogs? Tips & When to Walk Away

For dog owners, a partner who doesn’t like dogs isn’t a minor quirk to overlook. Dogs aren’t a hobby you can scale back...

More related

Truffle Hunting Dogs: How Do They Work? Facts & FAQ

As far back as the 15th century, pigs have traditionally been used to hunt truffles. Pigs are natural foragers with a strong sense...

How Long Do Pomeranians Live? Vet-Verified Average Lifespan, Data & Care

The Pomeranian is one of the most popular breeds in the world, and for good reason. They are highly intelligent and loyal and...

How Big Does an Akita Get? Vet-Verified Average Weight & Growth Chart

The Akita is an ancient Japanese dog that was originally developed sometime in the 1600s on Honshu Island. The breed is hardy, independent,...

Can Dogs Eat Salmon? Vet Reviewed Nutrition Facts & Precautions

When you think of dog food, you probably think of beef or chicken instead of novel protein sources like salmon. Part of the...

Keep reading

10 Best Dog Food Toppers in 2026: Reviews & Top Picks

Providing nutritious food and treats for your canine is vital for maintaining a healthy lifestyle. High-quality meals were once a niche market, but now, premium brand companies enjoy record sales. Although high-end pet food is typically produced with fewer fillers...

cute corgi dog eating dry dog food

Can Dogs Eat Coconut? Vet-Verified Nutrition Facts & FAQ

Coconut and coconut oil are not only tasty treats but they are also said to have health benefits, especially for people. However, does that mean it’s okay to feed this treat to your dog? Coconut is not toxic to dogs...

Can Dogs Eat Coconut

Can Dogs Eat Wheat Thins? Vet-Approved Nutrition Advice

Wheat Thins is a popular brand of crackers often advertised as healthy snacks. They are baked whole-wheat crisps that are relatively low in calories and often paired with other food items like dips or sliced meat. While Wheat Thins are...

Can Dogs Eat_wheat thins

15 Pet Food Delivery Service Trends & Statistics to Know in 2026

Pet food delivery is a vibrant and growing portion of the pet food market. More and more people are opting to buy their pet food online and have it delivered straight to their house rather than buy it in-store. These...

World Pet Delivery Facts and Statistics

Can Dogs Eat Cheesecake? Vet Approved Facts & Safety Guide

Cheesecake has been the object of our collective sweet tooth for over 4,000 years. It’s safe to say we love this dessert, so it’s not surprising some would want to share this tasty morsel with their canine BFF (though I...

Can Dogs Eat_Cheese Cake

10 Best Freeze-Dried Dog Treats in 2026 – Reviews & Top Picks

Dog owners everywhere know how important it is to feed their dogs the most high-quality and well-balanced diet possible. While dog food takes up the majority of a canine’s diet, it’s important to remember that treats are also fed regularly,...

dog owner giving her pet shih tzu a treat

10 Best Dog Foods for Bloodhounds in 2026 – Reviews & Top Picks 

Bloodhounds are having a bit of a moment. Trumpet, a 4-year-old bloodhound from Illinois, won Best in Show at this year’s Westminster Kennel Club Dog Show. Dog lovers everywhere are learning what you already know—bloodhounds make amazing pets! Finding the...

bloodhound on the porch

8 Amazing Benefits of Bone Broth for Dogs & Why We Love It (Vet Approved)

We want our pups to be as healthy as possible, so we make sure they eat nutritious dog food and exercise daily. But is there more we can do to ensure our dogs’ health and well-being? There is! One great...

bone broth bouillon in stainless steel pot

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter