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My cat has a red bump on its tail with hair loss. What should I do?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | 9 months and 19 days old | 9 lbs

There is a one relatively big bump or blister on my cats tail near to the groin.Can you diagnose the disease?The bump is pure red in colour and hair loss is seen around the bump.

3 Answers

Most Helpful Answer

Answered By Dr. Leigh, DVM

Veterinarian

Published on March 5th, 2019

It is difficult to diagnose without seeing the bump but it could be an infection, cyst, mass, or an injury. The best thing would be to have your vet take a look at it to determine the exact cause and best way to treat. He may need an antibiotic, anti-inflammatory, or other medications to treat. Your vet can do a needle aspirate, if necessary, to help diagnose the cause of the bump.

1Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Megan, DVM, CVA
Veterinarian
Published on January 18th, 2018
It is difficult to say for sure by just the picture but from your description it sounds like a benign cyst. I wouldn't be overly concerned about it, but I would have your vet take a glance at it at your earliest convenience just to ensure it is nothing to worry about. I hope this helps!
1Pet Parents found this answer helpful
Answered By Karly Macon, DVM, MS, CVA Certified Veterinary Acupuncturist
Veterinarian
Published on August 23rd, 2017
This could just be a little cyst or skin tag and not of any concern, but the only way to know for sure is to have your vet examine it. He/she may want to do a fine needle aspirate/cytology to look at cells under a microscope to give you a proper diagnosis. Hope that helps!
1Pet Parents found this answer helpful

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