We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Are the Common Causes of Pus in Cats?

Andrew Kirmayer
Updated Jun 04, 2024
Our promise to you
All Things Nature is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At All Things Nature, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

There is a wide variety of conditions that can cause pus in cats. Pus is a liquid that is produced by the body in an infected area, including a wound created by a bite or puncture. Puncture wounds often lead to pus secretions from an infected site in cats, while splinters and other foreign objects can lead to infections with pus as well. Other common causes for pus in cats include tooth problems, acne, mosquito bites, and serious conditions such as thrush and urinary tract infections. Pus on the skin of a cat can sometimes be treated at home, but if the infection progresses it might need to be drained or otherwise surgically treated at a veterinarian’s office.

Bite wounds are a common cause for pus in cats. If the cat gets into fights with another cat or animal, it can be infected by bacteria found in the saliva the feline was bitten by. The infection can be prevented if the wounded is found and treated early, but otherwise can lead to an abscess in the infected area. In addition to a fight, a cat can step on something and get a splinter, which must be removed before the wound gets infected and possibly spreads to other parts of the cat’s body.

Tooth problems such as decay can also lead to pus in cats, which is often accompanied by a bad smell. By touching the cat’s gums, a pulsating feeling indicates that tooth decay might be present. A cat will usually go to touch its mouth if there is pain near a tooth, while symptoms for other problems causing pus can include red and swollen tissue, pain, fever, and a yellow to brown liquid at the infection site. Cats with an infection also lose their appetite and appear to lack energy.

Additional causes of pus can be more severe if it is produced internally. If pus is found in a cat’s urine, for example, this can indicate a kidney infection or stones, inflammation in the pelvic area, an immune problem, or a tumor. Infections and abnormalities in the urinary bladder and urethra are also causes of pus in cats, and a veterinarian typically needs to test, diagnose, and treat the cat before the infection spreads and can be potentially fatal. For any cause of pus in cats, medical help is necessary if the cat will not eat, is in extreme pain, or if an abscess with puss exceeds the size of a golf ball, or does not shrink in a couple of days.

All Things Nature is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Link to Sources
Andrew Kirmayer
By Andrew Kirmayer
Andrew Kirmayer, a freelance writer with his own online writing business, creates engaging content across various industries and disciplines. With a degree in Creative Writing, he is skilled at writing compelling articles, blogs, press releases, website content, web copy, and more, all with the goal of making the web a more informative and engaging place for all audiences.
Discussion Comments
By bear78 — On Oct 09, 2013

My cat spends a lot of time outdoors and came home the other day with a scratch near her ear. Clearly, she had a fight with another cat. I thought that the scratch was fine but yesterday, I saw some green pus on it. I know that green pus means infection. I cleaned the scratch at home with soap and water but took her to the vet just in case.

The vet checked her temperature and since it was normal, just told me to apply antibiotic cream on the scratch. He said if she had a temperature, he would have given her antibiotics. I can't believe that a little scratch can be so problematic!

By donasmrs — On Oct 09, 2013

@simrin-- Was the pus clear or colored? Was there any blood?

If the pus was clear, then it's probably normal. Just watch out for more pus in the following days. If it doesn't happen again, then it's nothing to worry about.

If you see pus in his stool frequently, or if the pus has blood, it's a sign of an infection or a colon problem. You definitely need to take him to a vet in that case.

By SteamLouis — On Oct 08, 2013

What about pus in stool? I saw some pus in my cat's stool while cleaning his litter box this morning. Do I need to take him to the vet?

Andrew Kirmayer
Andrew Kirmayer
Andrew Kirmayer, a freelance writer with his own online writing business, creates engaging content across various...
Learn more
All Things Nature, in your inbox

Our latest articles, guides, and more, delivered daily.

All Things Nature, in your inbox

Our latest articles, guides, and more, delivered daily.