My cat has large red bumps on her butt. What are they and what to do?
Updated On September 23rd, 2025
My cat has large red bumps on her butt
2 Answers
Most Helpful Answer
Published on September 19th, 2018
Thanks for using Petco Pet Education Center, formerly Petcoach! It is not possible to diagnose this based on a picture. Possibilities include inflammatory disease, cancer, immune mediated disease, an infection, among other possibilities. I recommend that you have her evaluated by a veterinarian for further assessment and treatment. They may have to take samples from the lesions to try to find out. They Good luck and have a great day!
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on June 17th, 2017
The picture you provided is a little blurry but it looks like Angel may have some perianal dermatitis (infection and inflammation around the rectum and anus). This can happen if a cat is not grooming herself appropriately or if there is an infection in the anal glands. Oftentimes the hair needs to be clipped so the area can be thoroughly cleaned. The cats occasionally need antibiotics and anti-itch medication as well to help clear up the problem.
1Pet Parents found this answer helpful
Health & Wellbeing
Hi, My cat had a black puffy lesion on her hind quarter which has not responded to antibiotics. Do you have any idea what it could be? I have a photo if that would help. Thank you
Thanks for using Boop by Petco! It is very hard to see in these pictures. This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!
Updated on September 24th, 2025
Health & Wellbeing
Cat has a large red circle with grey bumps in middle. Pictures attached
It is difficult to tell from the pictures, but it looks like the red area is raised which makes me worry that it is a mass. I would recommend having your veterinarian evaluate it. They will likely take a small sample of cells with a needle and evaluate it under the microscope to determine what it is and what to do about it. I would not recommend any topical treatment until we know what it is. Good luck to you and Mittens. I hope it is nothing to worry about! I hope that was helpful. Thanks for using Boop by Petco.
Updated on September 24th, 2025
Health & Wellbeing
I already bought medicine for my cat HAPPY but then I saw something on her butt the purr hair of a cat is gone.
Thanks for using Boop by Petco! You may be referring to a focal infection. However, it is not possible to know this just based on a description or a picture. This would require an actual examination of the area to see what may be wrong so that therapy can be recommended. If this continues, I recommend that you have her evaluated by a veterinarian for further assessment and treatment. Best of luck!
Updated on September 24th, 2025
Health & Wellbeing
Hello, I found some kind of a small white bump/pus on the skin (back side area) of my 12 year old Siamese cat. she has no history of disease/illness, her behavior hasn't changed much. I would like to know what is it, and how to cure it?
Thanks for using Boop by Petco! It is not possible to know what it is for sure without being able to examine it microscopically. This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck!
Updated on September 24th, 2025
Health & Wellbeing
My cat has some bumps on her stomach, they're red and round and recently she has started to bite them so in turn there is some bleeding. I read online that it could just be fatty tumor, what can I do? She also lost a tooth a while back, her gums seem
Thanks for using Boop by Petco! This could be a benign or malignant growth. Based on its location, this could also be a mammary gland tumor which in most cases are malignant. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!
Updated on September 24th, 2025
Health & Wellbeing
My cat has a medium sized bump on her face and every time she itches it, it bleeds. This has been going on for a month and a half now, and i am getting concerned as it hasn't gone away.
Thanks for using Boop by Petco! This may be a benign or malignant growth. This could even be an infection. This cannot be completely assessed just by looking at pictures and usually requires sampling such as fine needle aspiration to determine its origin. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!
Updated on September 24th, 2025
Health & Wellbeing
Dr. Melanie if poss: Hi! I noticed this little red bump on one of my ferals' behind. Does it look concerning ? Thank you !
Hello! That bump looks a little swollen and red, and it could simply be a wound. I would clean the area with warm water and antiseptic soap, and keep an eye on it. If the swelling gets larger, Chiky starts having trouble passing feces, she starts scooting on her behind, licking the area a lot, and/or you see pus, then I would take her into the vet. In that case, I would be concerned that the wound may be infected, or it could be something else causing the swelling such as infected and impacted anal sacs or intestinal worms. Best of luck, I hope this helps!
Updated on September 24th, 2025
Health & Wellbeing
My dog has been breaking out in bumps what should I do
Thanks for using Boop by Petco! This may be due to an infection though it is not possible to know without an examination. I recommend you have her evaluated by a veterinarian for further assessment and treatment. They would be able to check for this and treat accordingly. Good luck and have a good night!
Updated on September 24th, 2025
Health & Wellbeing
My 13 year old cat has lumpy bumps all over him. He is an outdoor cat that likes to roll around in dirt. These bumps are pink or red and are solid not fluid filled. He doesn't like me to touch them. I would like to send you a picture but don't k
Unfortunately, you can't share pictures in the forum, but you can share them in a consult. You can request a consult online with an expert, and they can take look at the picture for you. Based on your description of the Cu's bumps and the fact that he likes to roll around in dirt, it could be that he is suffering an allergic reaction due to contact with something in the environment. I recommend having him seen by a vet right away. The vet can give him an anti-histamine or a steroid to help control and stop the reaction.
Updated on September 24th, 2025
Health & Wellbeing
Last night I noticed a white bump on Precious's butt. Can you tell me what it looks like to you? Should I be worried?
Thanks for using Boop by Petco! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!
Updated on September 24th, 2025
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