Lumps Kit

ES-Clear and Milk Thistle

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Home » All Articles » Vet Talks » Found a Lump on Your Dog? Here’s What Veterinarians Want You to Know

Found a Lump on Your Dog? Here’s What Veterinarians Want You to Know

Vet Talks 6 min read

One day, you’re giving your dog their usual belly rub when suddenly your fingers stop. You found a lump on your dog!

For many pet parents, finding an unfamiliar bump immediately brings one frightening thought to mind: “Could this be cancer?” Now, before assuming the worst, it’s important to remember that dogs can develop lumps and bumps for many different reasons, and not every mass is cancerous. Some may be harmless fatty growths or cysts, while others can develop because of inflammation, infection, or changes within the skin and underlying tissues. Some lumps can also be tumors that require further investigation.

The difficult part is that you generally cannot tell what a lump is simply by looking at or touching it. That’s why becoming familiar with your dog’s normal body can be so valuable: everyday moments like grooming, cuddling, and belly rubs give you an opportunity to notice new lumps on your dog and other physical changes, so that you can bring them to your veterinarian’s attention.

So, the big question remains: what should you do when your hand suddenly lands on a bump you’ve never noticed before?

I Found a Lump on My Dog: What Should I Do?

First, try not to panic. Finding a lump does not automatically mean your dog has cancer, and at the same time, trying to diagnose the lump yourself based on how it looks or feels isn’t reliable at all.

Instead, take note of what you’ve found: look at where the lump is located and approximately how large it is (you can take a photograph and compare the size with items like a coin). Make a note of when you first noticed it and whether your dog seems bothered when touched there. Then, contact your veterinarian and let them know you’ve discovered a new mass.

This is especially important with sudden lumps on a dog under the skin. Something that seems to have appeared overnight may genuinely be new, but it’s also possible that the lump was small or hidden beneath the coat and simply wasn’t noticed before.

Either way, your veterinarian can help determine whether this lump needs further evaluation.

Why Do Dogs Get Lumps?

There isn’t one single reason dogs develop lumps. A mass can originate from the skin, fatty tissue, connective tissue, glands, immune cells, or other structures within the body; some of these masses become more common as dogs get older, although lumps can occur at virtually any age.

According to the Van Lue Veterinary Surgical team, some of the most common possibilities include:

Lipomas: Benign growths made up of fat cells. They’re common in older dogs and frequently occur along the trunk and upper portions of the legs. They usually grow slowly and aren’t painful.
Sebaceous Cysts: These are blocked oil glands that can result in structures filled with fluid that may develop within or beneath the skin. They may burst and heal on their own.
Abscesses: Localized areas of infection and inflammation that may occur following wounds, bites, or other injuries. They are painful and hot to the touch, and they might ooze pus.
Warts and Skin Tags: These are harmless growths that could occur more often as dogs age.
Malignant tumors: Some masses are cancerous, including mast cell tumors, soft tissue sarcomas, mammary tumors, and other forms of cancer.

This list isn’t meant to help diagnose your dog’s lumps at home, but it’s more to illustrate exactly why veterinary evaluation is so useful: many very different conditions can create surprisingly similar-looking lumps.

Can You Tell If a Lump Is Cancer by Looking at It?

In short: no.

You may have heard that a soft, movable lump is harmless while a hard or irregular lump is cancerous. Some cancerous lumps may be small and harmless, while some benign lumps can look quite alarming. While veterinarians consider characteristics such as size, firmness, location, mobility, and growth rate, these features alone generally cannot confirm what a mass is or isn’t.

If you’re worried about a cancerous lump on your dog, the most useful next step is veterinary evaluation rather than trying to identify it by appearance or touch. Your vet may recommend a fine needle aspirate (FNA) to obtain cells from the lump to evaluate skin and subcutaneous masses. At other times, they might recommend a biopsy to have a more definitive diagnosis.

These diagnostic tools provide information that simply looking at a lump cannot.

What Should You Keep Track of?

You know your furkiddo better than anyone, and the information you notice at home can be useful when discussing a lump with your veterinarian. Note the lump’s size, color, texture, and whether it’s growing or changing shape. Watch for any discharge, bleeding, or if your dog seems bothered by the area.

Whenever you find something new, keep track of:

Where did you first notice it: write down the date rather than relying on memory. Take photos if possible.
Where it’s located: Be specific, especially if your dog already has other lumps.
Its approximate size and appearance: Measure it with a ruler, note the color, and whether the skin over it looks normal, irritated, or different.
Whether it changes: Watch for changes in size, shape, texture, or appearance.
How your dog responds: Pay attention to pain, itching, licking, or sensitivity around the area.
Changes in overall health: Appetite, energy, weight, mobility, bathroom habits, and behavior can provide additional information about how your dog is feeling.

A dog’s lumps can change over time, so keeping a log of their location and sizes will help your vet more effectively manage your furkiddo’s health.

What About a Lump on Your Dog’s Chest?

Finding a chest lump can raise additional questions because several different tissues and structures are located in this area. A lump on a dog’s chest may originate from the skin or underlying fatty and connective tissues, just like masses elsewhere on the body.

Depending on its exact location, lymph nodes or mammary tissues may also be involved. For example, female dogs have mammary glands arranged in two chains along the underside of the chest and abdomen. This means a lump near the chest, abdomen, or nipple area may sometimes originate from mammary tissue. And while not every mammary mass is malignant, mammary tumors can be benign or cancerous, which is why a new mass in this area deserves veterinary evaluation. If the mass turns out to be a mammary tumor, the NHV Mammary Super Support Kit may make a helpful addition to your pet’s daily care alongside their veterinarian’s suggestions. It’s a trio of all-natural supplements to provide extra natural support, daily.

When Should a Lump Be Checked by a Veterinarian?

If you discover any form of lump on your dog, it’s in your furkiddo’s best interest to have the lump examined by their vet. While the lump may be a harmless lipoma, if the lump does turn out to be a form of cancer, early detection and treatment are essential for good outcomes.

While not every mass is cancerous, there are a few indicators that mean it’s time for a vet visit:

Pain or Sensitivity: If your furkiddo reacts to the touch, this could be a sign of discomfort or inflammation.
Rapid growth or changes in appearance: Any lump that enlarges too fast, or changes color, shape, or texture over days (or weeks) should be checked right away.
Bleeding or discharge: This might be a sign of infection.
Ulceration: Open or oozing sores on or around the lump should NEVER be ignored.
Multiple lumps in multiple areas.

Remember that regular checkups are one of the best tools for catching health issues early. Don’t wait for a mass to look bad before getting your vet to assess it. Knowing what the lump is helps your veterinarian determine what (if anything) needs to happen next.

Natural Support for Lumps on Dogs

Finding a lump can be frightening, but a lump does not automatically mean cancer. Dogs develop many kinds of masses throughout their lives, and many of them are benign. At the same time, there’s no reliable way to determine exactly what a lump is based on appearance or touch alone.

Early detection and treatment can make all the difference

Regular grooming, brushing, cuddling, and belly rubs aren’t only wonderful bonding opportunities! They also help you become familiar with your furkiddo’s body. Running your hands gently over their chest, neck, shoulders, back, belly, legs, and paws from time to time will allow you to notice what has always been there and what feels different, and once you find it, let your vet know so they can help you determine what comes next. Remember, early detection and treatment can make all the difference in the world.

In addition to veterinary care, you can support your dog at home with natural supplements. NHV supplements, such as the Lumps Kit, can complement vet care, working holistically alongside each other as part of your pet’s care routine.

The NHV Lumps Kit contains two 100% natural, vet-approved supplements: ES-Clear and Milk Thistle. NHV ES-Clear is our main cancer support supplement. Made only with human-grade herbs, like slippery elm and sheep’s sorrel, it encourages vitality and organ wellness in pets with cancer. NHV Milk Thistle, on the other hand, has only one herb: a full-spectrum extract of organic milk thistle seed, an herb that may support antioxidant activity in the liver, encouraging the body’s natural detoxification processes.

Curious about how the Lumps Kit or other NHV supplements could play a role in your fur kid’s wellness plan? Reach out to a Pet Expert using the chat button below!

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Mammary Tumor Detox Kit

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cancer support

Mammary Tumor Super Support Kit

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Cancer Fighter Pack (Cancer Kit 4)

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Dr. Yuvia Hernandez, DVM

Dr. Yuvia Hernandez graduated from the Universidad Autonoma de Ciudad Juarez (Mexico) with a degree in Veterinary Medicine and Animal Husbandry, and later got her Master’s Degree in Educational Strategies from the Universidad Regional del Norte. She has taken several courses throughout her career to train in the veterinary field, such as emergency veterinary care, animal nutrition, and holistic veterinary care. Dr. Hernandez shares her home with two adorable cats as she continues to learn about animal welfare and care.