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Question:

Cat lipoma has doubled in size in one week

I'm really hoping some of you have some advice for me. I'm feeling pretty stressed right now. I have this wonderful furball, Whiskers, who’s been part of my life for over ten years. Last week, I noticed a small lump on his belly that the vet said was a lipoma and not to worry too much about it. But when I checked it again today, it seems it's doubled in size! I’m freaking out, and I can't help but think there might be something more serious going on. Whiskers still seems like his usual playful self, pouncing on his toy mice and begging for treats, but this sudden growth is eating at me. I have an appointment scheduled in a few days, but I'm desperate for some peace of mind in the meantime. Has anyone experienced something similar with their cats? Could it be a sign of something more dangerous, or am I just overthinking it? Any advice is really appreciated. Thanks in advance!

Answer:

Hi there! I understand how concerning it must be to notice your cat's lipoma increasing so quickly. Let’s talk about this.



Lipomas are typically benign (non-cancerous) fatty lumps found under the skin. They usually grow slowly, so a rapid increase like you mentioned is unusual and worth looking into. Sometimes, rapid growth can happen if the lump isn't actually a lipoma, but something else like a cyst or an abscess, especially if there's an infection or inflammation involved.



At home, it’s a good idea to gently monitor the lump. Note if your cat seems bothered by it, whether it’s warm to the touch, or if there are any changes like redness or discharge. Make sure your cat is otherwise eating, drinking, and acting normally. Avoid poking or squeezing the lump, as this can irritate it further.



Watch for signs like your cat being in pain, not eating, lethargy, or any changes in breathing or mobility. These could indicate something more serious that needs immediate attention.



To ensure you get the right diagnosis and keep your furry friend healthy and happy, it’s a good idea to book a video consult with one of our vets at Dial A Vet. They can assess the situation and guide you on the next best steps.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 22, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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