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.

Is Cancer Prevention for Dogs Possible? Everything You Need to Know!

sick dog with veterinary assistant doing examination of his head tumor

Cancer is a cruel set of diseases that often unfairly target specific dog breeds, but that can be present in a dog of any ancestry. Responsible breeding can help to reduce the risk of cancer in a dog breed, but it isn’t a guarantee of prevention.

Cancer is an extremely common concern among dog owners, which may lead people to question if there is any way to prevent cancer in their dog, whether they have a genetic predisposition or not. Here are the important things about cancer prevention in dogs that every dog owner should know.

In short, there are ways to reduce your dog’s risk of cancer, though not all cancers can be prevented.

Dogster_Website dividers_v1_Jan 18 2024-03

Is It Possible to Prevent Cancer in Dogs?

There are no guarantees when it comes to preventing cancer in your dog, but there are multiple things you can do to reduce the risk of cancer development. In fact, just about all aspects of your dog’s life can have an impact on their risk of developing cancer, but by making some changes, you can help prevent cancer in your dog.

For some dogs, there is nothing you can do to prevent cancer, and if your dog develops cancer, it doesn’t mean that you did something wrong.

Male veterinarian examining Great Dane on cancer in vet clinic
Image Credit By: Lucky Business Shutterstock

How to Reduce the Risk of Cancer in Dogs

Avoid Carcinogens

Just like in humans, carcinogen exposure can cause cancer. This means that exposure to certain chemicals can increase your dog’s risk of cancer development. This includes second and third-hand smoke exposure.

Second-hand smoke exposure occurs when you or someone else smokes directly around your dog, while third-hand smoke exposure occurs when your dog comes into contact with someone or something that has been exposed to cigarette smoke, like your clothes.

Other carcinogens that have shown a risk of cancer development in dogs are pesticides and lawn chemicals, so always read the safety warnings on these products and carefully follow all instructions on products that will potentially come into contact with your dog.

Don’t Forget the Sun

Again, just like in humans, sun exposure can increase the risk of cancer. Obviously, most dogs are covered with fur that helps protect them, but some breeds are very prone to developing melanoma from sun exposure.

Hairless breeds and those with thin or short, white coats are at an increased risk of developing skin cancer. Even longhaired dogs can develop skin cancer on exposed areas of skin, like the nose and ears. Dog sunscreen is available to help protect your dog, especially if your dog spends a lot of time outdoors.

Provide a Healthy, Good-Quality Diet

The role of nutrition in cancer is a rapidly evolving subject. There is no good direct evidence linking low-quality diets with cancer or that low-carb diets prevent cancer. However, it is recommended to feed a diet that is regularly tested to ensure no adverse ingredients or contaminants such as melamine and aflatoxins.

It’s important to feed your dog a diet that is WSAVA compliant, so you know that it contains all of the nutrients in appropriate amounts for your dog.

Maintain a Healthy Body Weight

Obesity is thought to be a risk factor for cancer in your dog, so the type of diet you feed them isn’t the only thing you can do to reduce the risk of cancer.

Maintaining a healthy body weight through exercise and feeding your dog an appropriate amount of food for their age, current weight, goal weight, and health status may help keep your dog’s risk of cancer development lower than it would be if they were overweight or obese.

An australian shepherd dog is running on a green meadow in a dog zone
Image By: TeamDAF, Shutterstock

Check Your Dog Regularly

It’s always a good idea to be very aware of your dog’s physical appearance, and this includes checking your dog regularly for lumps, bumps, and wounds. It’s ideal to check your dog thoroughly at least once per month, especially if your dog is of a breed that is at an increased risk of cancer development.

New lumps and bumps should be checked over by your vet to determine if they are of concern. Even with bumps that your vet is aware of, you should become familiar with the appearance and feel of the bump so you will know if something begins to change.

Talk to Your Vet About Spaying/Neutering

Having your dog spayed or neutered can have a direct impact on their risk for the development of certain cancers. Having your female dog spayed will eliminate her risk of ovarian cancer while neutering a male dog will eliminate the risk of testicular cancer.

The age at which your dog is spayed or neutered may impact the risks of certain cancers as well. Some studies have shown that early spaying can reduce the risk of mammary cancer. In fact, the more heat cycles a dog has, the more her risk of mammary cancer increases. However, some studies have shown a potential link to spaying early increases the risk of certain types of cancers in some breeds.

There are currently no blanket recommendations about the appropriate age to have a dog spayed or neutered. That is a conversation that you should have with your dog’s vet. You will need to make an honest assessment of your lifestyle if you are considering waiting to spay or neuter. Being a responsible pet owner who keeps their intact pet from having or making puppies is a serious commitment.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


Vaccines

There is a form of immunotherapy against cancer in the form of a vaccine that is still going through significant studies, but it has shown notable improvements for dogs that have cancer. Unfortunately, this vaccine doesn’t prevent cancer in dogs that don’t already have it.

This vaccine is designed to boost the immune system of dogs that already have cancer, allowing their body to fight cancer cells.

Dogster_Website dividers_v1_Jan 18 2024-03

Conclusion

According to AVMA, around 50% of all dogs over the age of 10 years will develop some form of cancer, so it is often an unavoidable issue. Fortunately, there are some things you can do to decrease your dog’s risk of developing certain types of cancer, and many of those things are quite easy for you to implement.

There are no certainties when it comes to cancer prevention, but you can make changes that will give your dog the best chance of not developing cancer.

See also: What and When Is Pet Cancer Awareness Month?


Featured Image Credit: sarocha wangdee, 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

Rottweiler German Shepherd Mix: Info, Pictures, Care & More

The German Shepherd Rottweiler mix is a stunning hybrid that has inherited its parents’ strength, loyalty, and guarding skills. But like most hybrid...

How to Introduce a Dog to a New Home: 8 Vet Approved Tips

Moving to a new home is never easy, but it’s also a tricky time for non-human family members. We know that it’s all...

10 Best Lint Rollers for Dog Hair in 2025 – Reviews & Top Picks

Shedding is a common and normal part of living with a dog, but it can certainly be an inconvenience, especially when your clothes...

Can Dogs Have Cinnamon? Vet-Approved Facts & FAQ

We have to be very careful as pet owners when it comes to our spice cabinets. Some are perfectly harmless to pets while...

More related

What Does a Red Collar on a Dog Mean? Vet-Verified Color Meanings & FAQ

Dogs come in all sizes, shapes, and colors, so it’s no surprise that owners have many options when selecting leashes and collars. But...

14 Amazing Belgian Malinois Facts (With Pictures)

The Belgian Malinois is an amazing dog with more than a few astounding qualities. The incredibly intelligent Belgian Malinois is also fearless, fast,...

12 Best Gourmet Dog Foods in 2025 – Top Picks & Reviews

We all want what is best for our canines, and premium food can be just the way to ensure that happens. Gourmet dog...

Can Dogs Eat Tomatoes? Health & Nutrition Facts

Whether eaten raw or cooked in a delicious sauce, tomatoes are a staple of many human diets. If you’re tempted to slip your...

Keep reading

8 Foods for Dogs That Reduce Inflammation: Canine Health & Wellness

Inflammation is not always a bad thing. It happens when your dog’s body is trying to heal from an illness or injury. It is a crucial response that is meant to protect the body. But when inflammation becomes chronic and...

West Highland White Terrier dog at home eating

Are Watermelons Good for Dogs? Nutrition Facts & Feeding Tips

As the weather gets warmer and your dog starts to pant, you may be looking for a refreshing treat that will cool you both down. If you’re snacking on a juicy watermelon, your dog might be begging for a piece....

watermelon-pixabay

Can Dogs Eat Octopus? Vet-Approved Nutrition Info & Risks

Octopus isn’t a common household food, but if you have some in your home, you might be wondering if it’s a healthy option for your dog. The truth is that while octopus is generally healthy and safe for dogs, it...

Can Dogs Eat_octopus

10 Best Beef Dog Foods in 2025 – Reviews & Top Picks

There are different aspects to consider when looking at food for your dog. There is your dog’s specific daily nutrition needs to consider, which are all determined by its breed, age, and any ailments it may be suffering from. When...

English cocker spaniel dog eating food drinking water from bowl on the floot in the kitchen home

9 Best Affordable Canned & Wet Dog Food in 2025 – Reviews & Top Picks

Did you know that the average American dog owner spends over $400 a year on food? In fact, dog owners spend more on food every year than they do on other pet-related expenses, such as vaccinations, grooming, pet insurance, training,...

person giving food to shih tzu dog

Can Dogs Eat Meatloaf? Vet-Verified Facts & Healthy Diet Tips

Meatloaf is a household staple in the United States. You can prepare this ground meat mixture in several ways that are delicious and satisfying. It’s loaded with protein, easy to make, and smells heavenly when you pull it from the...

Can Dogs Eat Meatloaf

How to Improve Your Dog’s Diet: 12 Vet-Approved Tips

Nutrition is one of the most important aspects of keeping your dog healthy and happy while giving them the best chance of a long life. And yet many owners buy the cheapest or most convenient dog food, tip some in...

Natural dog food Dog lying near its bowl

Do Puppies Need Puppy Food? Vet-Verified Facts & FAQ

When you stop to really think about it, it may seem like a no-brainer that puppies would need different food from our adult dogs. After all, we feed infants baby food. However, it really isn’t that clear to a lot...

dry dog food in a bowl on wooden table