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Question:

Hi vets my dog has a cyst ( I think ) on top of her tail, do I worry and take her to a in person vet

I'm feeling pretty anxious and could really use some advice. My sweet girl, Bella, has developed a strange lump on top of her tail. It's kind of firm but doesn't seem to be causing her any pain when I touch it. I did some Googling and it looks like it might be a cyst, but I'm definitely not an expert. She’s not acting differently—still her usual playful, tail-wagging self—but I can't help but worry. I called a couple of local vets, but the online appointments are booked for weeks. With her being her normal self, am I overthinking this, or should I make the effort to get her to an in-person vet as soon as possible? Any similar experiences or advice on what this could be would really help put my mind at ease. Thanks a bunch, everyone.

Answer:

Hello! It’s always concerning when we notice something new on our furry friends. A cyst on your dog’s tail can be a few things. It could be a sebaceous cyst, which is usually benign and filled with a thick, oily material. These types of cysts can occur when a hair follicle or skin pore gets blocked. Another common possibility is an abscess, often more painful and caused by an infection due to a wound or bite.



Keep an eye on the cyst to see if it changes in size, color, or becomes painful. If it’s small, not bothering your dog, and doesn’t seem infected, you might just watch it for a few days. Applying a warm compress gently a couple of times a day can help, too. However, if you notice redness, swelling, significant pain, or if your dog is excessively licking or biting at the area, it might indicate an infection or something more serious.



Also, if the cyst grows rapidly or changes significantly, it’s best to consult with a vet. Observing these changes with photos can be helpful for monitoring.



While I can give some peace of mind and guidance here, scheduling a video consult with a Dial A Vet professional can provide tailored advice and determine if an in-person visit is necessary.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 24, 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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