At a Glance
Lipomas are common, usually benign fatty tumours that often develop in middle-aged and senior dogs. While most don’t require treatment, monitoring their size, location, and growth is important for identifying potential complications. Veterinary assessment helps distinguish lipomas from more serious masses and determines whether observation, lifestyle management or surgical removal is the most appropriate course of action. To naturally support dogs with fatty tumours, choose Milo Naturals.
Lipomas - What Causes Fatty Tumours in Dogs?
It’s something almost every dog owner experiences eventually. You’re stroking your pup, and suddenly you feel a soft, squishy lump beneath the skin.
Your heart skips a beat. Is it dangerous? Does it mean something serious?
In many cases, that lump is a lipoma, a benign fatty tumour that’s extremely common in dogs, especially as they get older. But what are fatty tumours in dogs?
While the word tumour sounds scary, most lipomas are harmless and manageable.
Let’s explore what they are, why they form and how you can support your dog’s overall health naturally.
What is a Lipoma (Fatty Tumour) in Dogs?
Wondering what are fatty tumours in dogs? A lipoma is a slow-growing, non-cancerous lump made up of fat cells (adipocytes).
They develop in the layer beneath the skin, often on the chest, belly or legs, but can appear almost anywhere.
Lipomas feel soft or rubbery to the touch, easy to move under the skin and usually painless when pressed. They can range from the size of a pea to a tennis ball (or larger in some cases).
Lipomas are the most common type of tumour in middle-aged and senior dogs, particularly in breeds like Labradors, Weimaraners, Dobermans and Cocker Spaniels.
Are Fatty Tumours Dangerous?
The good news is that most lipomas are not dangerous. They don’t spread to other parts of the body, and they rarely turn malignant.
You might also wonder, “Are fatty tumours in dogs painful?” No, they’re often painless. However, they can become problematic if they grow large enough to restrict movement, press on nerves or internal organs, or develop in tight spots (like under the armpits or behind the shoulders).
That’s why vets often recommend monitoring rather than rushing to remove them.
That said, if a lump is hard, fast-growing or irregularly shaped, your vet may perform a fine needle aspiration (FNA) to confirm it’s a benign lipoma and not a different, more dangerous tumour type.
Why Do Fatty Tumours Grow in Dogs?
Wondering what causes fatty tumours in dogs? Lipomas form due to a combination of factors rather than a single cause. While they’re usually harmless, understanding why they develop can help owners support their dog's overall health and well-being.
Ageing and Slower Cell Metabolism
As dogs age, their metabolism naturally slows down, and the body's ability to regulate cell growth becomes less efficient. This can lead to the uneven accumulation of fat cells beneath the skin, increasing the likelihood of lipoma development.
Genetic Predisposition
Some dogs are simply more likely to develop lipomas because of their genetic makeup. Breeds such as Labrador Retrievers, Golden Retrievers, Doberman Pinschers and Miniature Schnauzers are often reported to have a higher incidence of fatty tumours.
Excess Body Weight
Overweight and obese dogs tend to develop lipomas more frequently than dogs at a healthy weight. Carrying excess fat places additional strain on normal metabolic processes and may encourage the growth of fatty tissue over time.
Toxin Storage in Fat Tissue
Fat tissue can act as a storage site for certain environmental toxins and metabolic waste products. While research is still ongoing, some holistic veterinarians believe that toxin accumulation within fatty tissue may contribute to the formation of lipomas in susceptible dogs.
Immune System Imbalance
A healthy immune system plays an important role in regulating normal cell function and tissue repair. When the immune system is under chronic stress or functioning less effectively, abnormal fat cell growth may become more likely.
Inflammation and Overall Health
Long-term, low-grade inflammation is increasingly recognised as a factor in many chronic health conditions. Inflammation can affect the body’s normal cellular processes and may create an environment that supports the development of fatty growths.
Rather than viewing a lipoma as an isolated issue, it can be helpful to see it as a sign that your dog’s body’s overall balance and well-being may benefit from additional support.
While lipomas themselves can’t always be “cured” without surgery, you can help support your dog’s immune system, metabolism and detox processes to promote healthy cell function.
That’s where natural supports like Turkey Tail mushroom come in.
Turkey Tail Mushroom - Nature’s Support for Fatty Tumours
Now that you know what are fatty tumours in dogs, you might also wonder how to support your dog's health naturally. Among natural supplements, Turkey Tail mushroom (Trametes versicolor) is one of the most scientifically studied and vet-trusted ingredients for canine immune health.
How It Helps Dogs with Lipomas
Immune Regulation
Turkey Tail contains beta-glucans, compounds that help the body’s immune system respond appropriately, preventing overgrowth of abnormal cells. Rather than overstimulating the immune system, these compounds help promote balance and healthy immune function. This immune-modulating effect may support the body's natural ability to monitor and manage abnormal tissue growth over time.
Anti-Inflammatory Benefits
Turkey Tail reduces low-level inflammation that can contribute to fatty tumour development. Chronic inflammation can interfere with normal cellular processes and tissue maintenance, creating conditions that may encourage abnormal growths. By supporting a healthier inflammatory response, Turkey Tail may help maintain overall tissue health and well-being.
Gut Health & Detox Support
Turkey Tail contains prebiotic fibres that help nourish beneficial bacteria in the gut, supporting digestive health and a balanced microbiome. Improved digestion and nutrient absorption can help the body use fats more efficiently and support normal metabolic function. A healthy gut also plays a key role in immune health, making digestive support an important part of overall wellness.
Clinically Studied in Dogs
Turkey Tail is one of the few medicinal mushrooms that has been extensively researched in canine health. A University of Pennsylvania study found that Turkey Tail extract improved immune strength and extended survival times in dogs with serious health conditions, demonstrating its safety and effectiveness. While lipomas are very different from the conditions studied, this research has helped establish Turkey Tail as a trusted supplement among veterinarians and pet owners alike.
Diet & Lifestyle Tips for Dogs with Lipomas
Feed Fresh, High-Quality Food
A nutritious diet provides the building blocks your dog needs for healthy cell function and overall well-being. It’s best to avoid fillers such as corn, soy, artificial additives and low-quality by-products whenever possible.
Instead, focus on high-quality protein sources, lean meats and nutrient-rich vegetables that support a healthy metabolism. Foods rich in vitamins, minerals and antioxidants may also help protect cells from oxidative stress.
Maintain a Healthy Weight
Obesity is one of the most commonly recognised risk factors associated with lipoma development. Excess body fat can place additional strain on metabolic processes and may encourage the formation of fatty tissue over time.
Keeping your dog at an ideal body condition can help reduce unnecessary stress on the body and improve overall mobility. Even modest weight loss can have significant health benefits for overweight dogs.
Support Detox Pathways
The body naturally removes waste products through organs such as the liver, kidneys, digestive tract and skin. Providing fresh, clean water every day helps these systems function efficiently and supports normal detoxification processes.
Antioxidant-rich foods, leafy greens and functional ingredients such as medicinal mushrooms may also help support cellular health and the body's natural defence mechanisms.
Exercise Regularly
Regular exercise supports a healthy weight while benefiting almost every system in the body. Movement helps stimulate the lymphatic system, which plays an important role in transporting cellular waste and supporting immune function.
Daily walks, play sessions and age-appropriate activities for dogs can help improve circulation and maintain muscle tone. Consistent activity may also support healthy metabolism and energy balance.
Vet Check-Ups Every 6–12 Months
Routine veterinary examinations are important for monitoring your dog's overall health and identifying any changes early. Existing lumps should be checked regularly to ensure they’re not increasing in size, changing shape or becoming uncomfortable.
Your vet may recommend measuring or documenting lipomas over time to track their progression. Quick evaluation of any new lump is always advisable, as not every growth under the skin is a harmless lipoma.
To Support Your Dog’s Health, Choose Milo Naturals
What are fatty tumours in dogs? Lipomas or fatty tumours under the skin are common and usually harmless lumps. However, they’re also the body’s way of saying, “I need a little extra support.”
By focusing on diet, exercise and natural immune support, especially with Turkey Tail mushroom, you can help your dog maintain balance, vitality and comfort as they age.
When our dog Milo developed several small lumps, we were worried.
Our vet confirmed they were fatty lipomas, harmless, but a sign that his body needed extra support.
After introducing Turkey Tail mushroom, his energy, coat and overall vitality improved dramatically.
That experience inspired us to create Milo Naturals, offering high-quality, third-party tested supplements made specifically for dogs.
At Milo Naturals, our Turkey Tail supplement is:
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3rd Party Tested in the UK
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Contains 40%+ Beta Glucans (the active compounds that matter)
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Includes Added Probiotics for gut synergy
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Naturally bacon-flavoured (so dogs love it daily)
To help support dogs with fatty tumours & lipomas naturally, shop Milo Naturals supplements today.
FAQs About Fatty Tumours (Lipomas) in Dogs
Are fatty tumours in dogs dangerous?
Most lipomas are benign and not dangerous, but it’s always better to have new lumps checked by your vet.
Can fatty tumours shrink on their own?
Not typically, but lifestyle improvements and immune support may help slow or stabilise growth.
Are fatty tumours in dogs painful?
Most are painless unless they press on joints or internal structures.
Can Turkey Tail help with fatty tumours?
Yes, it supports immune balance, gut health and inflammation, helping the body regulate cell growth naturally.
When should I consider surgery?
If the lump restricts movement, grows rapidly or causes pain, consult your vet about removal options.