Cancerous Bumps & Tumors
You might have seen this coming from a long way off, but this is the reason why you have to check those lumps with your veterinarian. Malign tumors can be fatal to your dog if left untreated since they will quickly spread to other parts of your dogs body, which can be very hard to treat down the road.
Cancerous tumors can do big damage to your dogs body by attacking the liver and lungs . Sometimes, chemotherapy and radiation therapy are used to remove any signs of cancer cells.
- 1st Example of Lumps
- 2nd Example of Possible Tumors
There is a broad range of cancerous tumors, and several specific examples are breast cancer and even bone tumors. Some cancerous cells are caused by direct exposure to sunlight, so make sure to keep your dog inside during the most heated part of the day. Even though the cause might be different, the result is always the same.
If left untreated, the cancerous cells will begin to spread to other parts of the body and begin to launch their attack on your dogs immune system. Due to their rapid growth rate, they will quickly overcome the immune system in place and start to shut the whole system down, which is fatal for your dogs health.
Solutions to Cancerous Tumors
To recap, the best solution to cancerous tumors is with your vets help. Your awareness is also put to the test since earlier, the better! Also, frequently petting your dog and feeling for any hard, movable lumps under your dogs skin can be a great way to start and end your day.
Lumps And Bumps On Pets: When To Make A Mountain Out Of A Molehill
You are stroking your pets silky fur while relaxing on the couch, when your hand stumbles across a small, firm lump. Instantly, your mind goes to the big Ccancer. While some lumps and bumps can indicate a cancerous tumor, not all masses are malignant. In fact, many lumps are benign and, although they may grow, are not likely to cause terminal illness. Before panicking about your furry pals lump, schedule an appointment with your Scripps Ranch Veterinary Hospitalveterinarian for an accurate diagnosis. Theres an excellent chance your cherished companions bump is one of the following five most common benign masses.
Sign Up For Our Newsletter
This is a summary of the coverages in your pet health insurance policy from Fetch. No coverage is provided by this summary nor can it be construed to replace any provision of your policy. You should read your policy and review your Declarations page for complete information on the coverages you are provided. If there is any conflict between the policy and this summary, the provisions of the policy shall prevail.
Recommended Reading: How To Tighten Eyelid Skin
Hard Movable Lumps Under Dogs Skin
Even though it might look like bloated skin patches, the hard movable lumps under the dogs skin can pose serious medical problems that need immediate attention. As you can see in the pictures listed above and down below, some lumps look small at first but can quickly grow into large lumps of malignant tumors.
In this post, we will try to cover the culprits that are behind these lumps, but you have to come armed with the knowledge of your dogs recent symptoms to correctly narrow down the answer. If you really dont have the symptoms at hand, it is probably best to go to the vet for an immediate solution.
Sudden Lumps On Dog Its Likely Fine

We all know the joke about checking webMD when youre feeling sick and inevitably self diagnosing with cancer or some other horrible disease. The same process happens with your dog and lumps, after all It is a lump! you think to yourself. Well without a vet or some test results you cant know for sure, and it is likely your mind is just running away from you.
Most lumps are totally benign fatty tumors. Less than half of lumps on dogs are malignant or cancerous. But they look the same from the outside and you cant be certain without getting tests. That doesnt mean you should ignore them however!
Fatty tumors specifically most often happen in middle age or older dogs, especially along their ribs, though they can show up elsewhere. Fatty tumors are considered a natural part of aging, and any breed can have them though overweight and larger breeds are more common.
If a lump or bump has appeared suddenly chances are youre not sure about the cause of it. And if youre not sure about the cause, you need to see your vet to see whats going on and theyll want to know to ensure proper ongoing care for your pet!
Your vet will want to know a few things right off the bat so do your best to gather this info:
- If the shape, color, or size of the lump has changed
- If your dogs behavior, appetite or energy level are different
The bigger concern is if the cancer has already spread to other parts of the body. If so, your pet may need radiation or chemotherapy, or both.
Read Also: Can Basal Cell Turn Into Melanoma
Cancerous Lumps In Dogs
While not all tumors are cancerous, it can be difficult to tell as a pet parent what you should and shouldn’t worry about. Your vet will be able to diagnose the specific kind of cancerous lump or bump on your dog.
After assessment and examination they may diagnose your dog with one of the following forms of cancer:
Squamous Cell Carcinoma
Malignant Melanoma
Mast Cell Tumors
Mast cell tumors occur in the mast cells of the immune system and are very common in dogs. These tumors can grow anywhere on the skin, and even on the dog’s internal organs. That said, some of the most common sites for mast cell tumors to appear are on the limbs, lower abdomen, and chest.
Lumps & Bumps On Your Dog’s Skin
If you’ve discovered a lump or bump on your dog’s skin, it’s likely that the worry of cancer may have crossed your mindespecially if the patch of skin is discolored too. It’s important to remember, however, that not all lumps or bumps are cancerous.
In either case, careful monitoring a veterinary intervention are the keys early detection and treatment of illness, cancerous or not, that may be causing your pup’s lumps.
There are two varieties of lumps and bumps in dogs, cancerous and non-cancerousor, skin growths. Here are some examples of both cancerous and non-cancerous lumps and bumps you may find on your dog:
Don’t Miss: What Happens When You Get Melanoma
How To Tell If The Lumps On Your Dog Are Cancerous
As with humans, dogs also get cancer, particularly as they get older. However, it can be difficult to know if a lump or bump is a tumour, or if it is attributed to another health problem. Likewise, without medical attention, it can be difficult to determine if a lump is cancerous, or if it is benign.
As always, if you notice any lumps, bumps or changes under your pets coat you should contact your vet immediately. This guide wont replace our care and expertise, but it will give you the information you need to spot the warning signs, and hopefully catch cancerous lumps early.
Lymphoid Tumors Of The Skin
Canine extramedullary plasmacytomas are relatively common skin tumors in dogs. They are most frequently identified on the head, ears, lips, mouth, and legs of mature to aged animals. Cocker Spaniels, Airedales, Scottish Terriers, and Standard Poodles are most at risk. The tumors are generally small in diameter and sometimes narrow. Diagnosis is by finding the tumors on the animal and confirming the type of tumor with a fine needle aspiration or a biopsy. Most of these tumors do not spread and surgical removal is the usual treatment. When these tumors develop in the mouth, they may multiply. Treatment for the multiple form is more difficult, because the tumors are more likely to return following surgery. In such cases, tissue around the tumors may have to be removed. When tumors are multiple, or surgical removal is not feasible, radiation treatment is considered. Chemotherapy is commonly recommended for patients if radiation treatment is declined or if the tumor is resistant to radiation treatment.
Many treatments for skin lymphosarcoma have been tried, though no treatment has been shown to be completely successful. Thus far, all the tested treatment procedures improved the signs of the disease but did not lengthen an affected dogs life. Your veterinarian or a veterinary cancer specialist will have access to the latest treatment information for skin lymphosarcoma and will recommend the treatment program that is best suited for your pet and its overall health.
You May Like: What Causes Small Cell Carcinoma
What To Do If A Lump Forms
If a lump forms in the area where the dog bite occurred, above all you should seek medical attention. This is also the case if the area of the dog bite still hurts after it has healed. However, seeing a doctor is not always convenient, so people may wait to see if the issue will resolve itself. While it is not recommended, if you want to wait to see if the infection gets worse, you should do the following two things:
If you notice any difference- the lump growing or changing colors while recording this information, you should immediately see a doctor. Make sure that your doctor receives this information during your visit, it can help immensely when determining the best treatment to fight the infection.
Why Are Some Lumps Hard And Others Soft
Lumps can be caused by a wide range of reasons, and depending on the cause, the lump will feel different.
For instance, if a lump feels dense and hard, this is usually a sign of cancerous growth. On the other hand, a lump that feels soft is benign, typically lipoma.
This is due to cancer cells ability to change the structure of the tissue. Cancer cells tend to make the tissue around a tumor stiffer and harder.
Read Also: What Are The Tiny Red Dots On My Skin
How To Determine The Cause Of A Black Lump On A Dog
If your dog has a pigmented lump, the best way to help determine the underlying cause is to closely examine the lump. Your veterinarian may provide the following care during an appointment:
- A complete examination. A complete examination of your dog, looking at the eyes, ears, listening to the lungs and heart, feeling the lymph nodes, and feeling the abdomen to evaluate the size and shape of the kidneys, liver, spleen, bladder, and intestines.
- Examination of the black skin lump. Your vet will evaluate the skin mass noting the size, shape, depth, texture, location, and color. Shaving hair around that area will help evaluate the pigmented lump and surrounding skin. This may be best done with the help of your veterinarian.
- Provide recommendations. Based on the size, location of the mass, pigmentation, and suspicion that this lump could be cancerous, your vet will provide recommendations as to the best approach to determine the cause of the skin mass. They may recommend evaluating the mass with a fine needle aspirate, biopsy, or mass removal called âlumpectomyâ. If their level of concern about the mass is high, they will recommend sending a tissue sample to a laboratory for histopathology.
Types Of Skin Tumors In Dogs

The word tumor is one of the scariest words a pet parent can hear. However, not all tumors are cancerous, and even those that are can still be treated. A tumor, simply, is a mass of tissue that forms as the result of the accumulation of abnormal cells. Read on to learn about some of the different types of tumors and where they might form on your dog’s body:
- Histiocytomas: These small, hard and dome shaped benign growths often appear in younger dogs on their head, ear flaps or legs. They can often disappear, even without treatment.
- Lipomas: These are most commonly found in overweight dogs they are benign tumors consisting of soft and smooth clumps of fat cells that can grow very large, found most often around the chest, abdomen and front legs.
- Sebaceous Gland Hyperplasia: This type of tumor forms when the glands that secrete sebum grows rapidly. These are also benign tumors that have a wart-like appearance often found on your dog’s legs, torso or eyelids.
- Malignant Skin Tumors: These types of tumors are cancerous, and appear as noticeable lumps or sores on the skin that won’t heal. The most common type of malignant skin tumors are mast cell tumors. Early detection is key to keeping your dog happy and healthy.
You May Like: What To Give Dog For Itching Skin
Soft Tissue Giant Cell Tumors
These tumors are not well understood. They appear more like an inflammatory reaction than a tumor and are generally treated with steroids. An abnormality called canine fibrous histiocytoma has been found in the eye of some dogs, most commonly Collies 2 to 4 years old.
Some soft tissue giant cell tumors are malignant . Malignant fibrous histiocytomas are rare in dogs. They seldom spread to other sites but tend to return after surgical removal. Surgery to remove these tumors is the treatment of choice. Because these tumors can grow into surrounding tissues, most veterinarians will also remove a wide margin of tissue surrounding the tumor, to be as sure as possible that the entire tumor has been taken out.
Know When It’s Time To See The Vet
minute read
Your dog is your best friend â so when you notice they have a new lump or bump, itâs natural to feel worried. Donât jump to conclusions about their health too quickly, though. Fetch by The Dodoâs on-staff vet Dr. Aliya McCullough shares the different types of lumps on dogs and what they mean.
You May Like: What Does Melanoma In Situ Look Like
What Treatment Is Available For Growths Skin Masses And Tumours In Dogs
Treatment depends very much on the results from the cell analysis. Where a cyst or abscess is found to be benign, your vet is likely to lance and drain it and, in the case of an abscess, follow treatment with a course of antibiotics.
If the lump is found to be a benign fatty mass and not causing your dog any discomfort, the vet will likely advise that it is not removed. Alternatively, they may advise you to look out for any change in size or texture of the lump and to have regular check-ups.
If the mass is malignant, you will, in most cases, be advised to have the lump removed together with the area surrounding the mass. This will be sent off to a pathology lab to be examined to ensure all affected cells have been removed. X-rays may be recommended to check whether the Cancer has spread to other body parts, followed by radiation and/or chemotherapy if required. Treatment will also involve taking blood tests to determine your dogs response to treatment and overall health.
All treatments must be followed up with regular check-ups for any reoccurrence.
Treating Lumps On Dogs
After the lump is tested and a diagnosis is confirmed, your veterinarian will guide you through treatment options, if necessary. As discussed, treatment can vary greatly depending on the type of lump your dog has.
As previously mentioned, some common forms of treatment for lumps on dogs include:
- Surgical removal
- Topical ointments
Even when a lump is diagnosed as cancerous or malignant, your dog may have a great outcome, especially if treatment is initiated early and aggressively.
The cost of treatment for lumps on dogs varies based on the diagnosis. However, treatment will always be more affordable if the lump is properly addressed and cared for earlier, while it is smaller and less likely to have caused secondary issues, like infection, that will also need to be treated.
Remember, a lump cannot be treated until it is identified by you, the responsible pet parent. Check your pet frequently for new lumps or bumps so you can more quickly spot any abnormal growths on your dog and have them tested and treated earlier rather than later.
Read Also: Bb Cream For Acne Prone Skin
Diagnosis Of Dog Lump Under Skin:
The appearance of the lumps and clinical examination is usually helpfulin identifying the type of lump. Tumors under skin can be diagnosed bybiopsy and with laboratory examination. Dog lumps under skin should bedifferentiated with those that occur over the epidermal layers of the skin by making note of any stalk or root which isembedded in the soft tissues of the skin or in fat under the skin.
Treating A Dog Bite Can Be Expensive
Besides being dangerous, the costs associated with being the victim of a dog bite add up quickly. There are two type of expenses that are associated with dog bites:
If you were bit by your own dog, it will most likely come down to your health and homeowner insurance providers to help cover some of your medical expenses. If you were bit by someone elses dog, you should not be held responsible for any of the costs associated with the bite. At a minimum it should be the dog owners responsibility to cover your medical expenses.
If the owner refuses to pay for expenses incurred because of the dog bite, contact a personal injury attorney. A dog owner is responsible for all actions that their dog takes, including when their dog bites someone else. The only time when a dog owner is not responsible for paying for the treatment of a dog bite is when the dog is provoked to bite or acting in self-defense.
According to the Insurance Information Institute, in 2011 the average dog bite insurance claim payout was $29, 396. If the amount your insurance company is providing you with is significantly lower than this number, you should contact a personal injury attorney. While insurance companies advertise that they are on your side, the reality is the complete opposite.
You May Like: What Is Braf Testing In Melanoma