Pet Health

Cat Lipoma & Skin Tumors

Discover the types, causes, and treatments of cat lipomas and skin tumors. Learn how to recognize symptoms and ensure your feline friend stays healthy!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A close-up of a cat's skin showing a lipoma and skin tumor for veterinary health discussion.

Video Call an Aussie Vet now for just $49 AUD

Dial A Vet is available in Australia, NZ, Canada, United States & Canada!
Speak to A Vet Now

Finding a lump or bump on your cat’s skin can be alarming. As a pet parent, it’s natural to worry about what it might mean for your furry friend’s health. While not every lump is cause for panic, some, like lipomas or skin tumors, may require attention. Understanding what these growths are, how they’re diagnosed, and when to take action can help you feel more in control and ensure your cat gets the care they need.

⚠️ What to Watch For

Lumps and bumps on cats are fairly common, especially as they age. However, not all lumps are the same. Here are some key signs to look out for when examining your cat:

  • A soft, squishy lump that moves easily under the skin
  • A firm, irregular, or rapidly growing mass
  • Lumps that feel hot, are painful, or cause your cat discomfort
  • Ulcerated or bleeding growths
  • Changes in your cat’s behavior, such as lethargy or loss of appetite

It’s important to check your cat regularly for new growths, especially in areas like the chest, belly, or legs, where lipomas are more commonly found. Early detection can make a significant difference in treatment outcomes.

🔍 Possible Causes

Not all lumps are harmful, but understanding the potential causes can help you stay informed. Here are the most common types of skin growths in cats:

  • Lipomas: These are benign (non-cancerous) fatty tumors that usually feel soft and are slow-growing. Lipomas are more common in older cats.
  • Skin cysts: Cysts form when hair follicles or oil glands become blocked. They are typically harmless but can become infected.
  • Mast cell tumors: These can be either benign or malignant and often appear as firm, raised lumps. Mast cell tumors are more serious and may require removal and further treatment.
  • Fibrosarcomas: These are malignant tumors that tend to grow quickly and invade surrounding tissues. They are more aggressive and often require prompt surgical removal.
  • Abscesses: Often caused by infections or injuries like bites, abscesses are swollen, painful lumps filled with pus. They usually require drainage and antibiotics.

While some of these growths are harmless, others can indicate a more serious condition. A veterinarian can determine the exact cause through examination and diagnostic tests.

✅ What You Can Do at Home

If you notice a lump or bump on your cat, here are some steps you can take before consulting a veterinarian:

  • Gently feel the lump to assess its size, texture, and mobility. Avoid squeezing or poking it.
  • Monitor the lump for changes in size, shape, or color over time.
  • Keep a journal to track when you first noticed the growth and any changes in your cat’s behavior.
  • Check for other lumps or abnormalities on your cat’s body during grooming or petting sessions.
  • Ensure your cat’s diet is balanced and includes essential nutrients to support overall skin and immune health.

While monitoring is helpful, it’s important to remember that a proper diagnosis requires a veterinarian’s expertise. Home care can only go so far in determining the nature of the lump.

💡 When to Call a Vet

Not all lumps require immediate action, but there are certain situations where prompt veterinary attention is necessary. Contact your vet if you notice any of the following:

  • The lump is growing quickly or changing shape
  • Your cat seems uncomfortable or in pain
  • The lump is ulcerated, bleeding, or leaking fluid
  • There are multiple lumps or other concerning symptoms, like weight loss or lethargy
  • Your cat has a history of cancer or other serious health issues

A vet will typically perform a physical exam and may recommend diagnostic tests, such as a fine needle aspiration (FNA), biopsy, or imaging like X-rays or ultrasounds. These tests help determine whether the lump is benign or malignant and guide the next steps in treatment.

FAQs

Q: Are lipomas in cats dangerous?
A: Most lipomas are benign and do not pose a significant health risk. However, it’s important to have any lump examined by a vet to confirm the diagnosis and rule out more serious conditions.

Q: Can skin tumors in cats be treated?
A: Yes, many skin tumors can be treated, especially if caught early. Treatment options may include surgical removal, medication, or, in some cases, chemotherapy or radiation therapy for malignant tumors.

Q: Should I be worried about a lump on my young cat?
A: While lumps are more common in older cats, they can occur in younger cats as well. Any new lump should be evaluated by a veterinarian to determine its nature and whether treatment is needed.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
Speak to A Vet Now

🐾 You Might Also Like