Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Do Cats Hiss? 5 Vet-Reviewed Reasons for This Behavior

a tabby mackerel cat hissing

Everyone has heard a cat hiss at least once or twice in their lifetime. Cats are well known for hissing, but it can be confusing as to why a cat might be hissing at any given time. So, why do cats hiss? There are actually a few reasons that you might hear a cat hiss.

divider single cat paw oct 2024

The 5 Reasons Why Cats Hiss

1. A Warning Sign

The most common reason that a cat will hiss is to warn someone or something threatening them. Hissing is not only a verbal warning but also a defensive mechanism, and they use it to relay a message that they need more space from the potential threat. However, they are more likely to back away and try to escape than attack after hissing, unless the other animal or human is cornering them or exposing them to a very stressful situation, such as trying to catch or restrain them.

Cats will hiss at people, cats, and other animals, and even inanimate objects if they are wary.

cat meowing
Image By: Stanimir G.Stoev, Shutterstock

2. Stress

Another reason for cat hissing is stress. Many things can make a cat stressed out, such as moving to a new home, learning to live with a new household pet, dealing with rambunctious kids, coming to the vet, or getting locked inside or outside of the house. If a cat does not have another way of relieving stress, they will use their hissing skills. They will likely continue hissing intermittently until the source of stress is removed.


3. Mother Is Protecting Her Kittens

If your cat had kittens and you tried to touch them, she may have hissed at you in order to keep you away. Mother cats are very protective of their kittens, and some may hiss if you get too close, so it’s important to avoid interfering too much in the first 2 weeks of their life, especially if they are thriving and doing well. 

If there is a health issue or a decline in any of the kitten’s health, of course, make an exception and get them checked out by your vet immediately. However, handle the kittens with gloves so you are not changing their scent by adding yours. 

On the other hand, some cat mothers who are very attached to their owners will want you to be part of the kittens’ life from birth and will bring you the kittens and allow handling from an early age.

2cat meowing
Image By: auenleben, Pixabay

4. Pain or Illness

Cats will hiss if they are in pain, especially when someone is trying to touch them where they are hurting. They may also show signs of pain by limping or meowing. Even a small amount of pain can make a cat irritable, just like it would a human. Getting too close or challenging your cat’s mood can just make the situation worse. If pain is suspected, a visit to the veterinarian’s office is in order. 

The same goes for illness. If your cat is not feeling well, they may be uncomfortable and not tolerant of your attempts to bond or check them over. Speak to your vet in order to get down to the root of the problem.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money


5. Irritation

Cats can become irritated when they want to be left alone. They may not enjoy cuddling at a certain time, especially if there are kids or other pets chasing them around the house if all they want to do is rest. After all, they sleep for 15 hours every day, give or take. They also do not like their tails or ears tugged on. Sometimes as their human parents, we can be pushy and try to make our cats sit on our laps or cuddle with us when they do not want to, which can understandably cause hissing. Any type of annoyance will make most cats hiss. 

Always supervise kids with your cat, as they can be rough and cause your cat pain, which, in turn, can lead to nasty scratches and bites from a stressed-out cat. The same applies to other pets, as cats should have their peaceful resting spots in a private area so they are not disturbed when they don’t want to be.

cat hissing
Image by: yvonneschmu, Pixabay

divider cat paws oct 2024

Overall Thoughts

Most of the time, cats hiss because they are not happy with something going on in their bodies or environments. If your cat seems to hiss too often or when it is not warranted, take them to see a veterinarian for a checkup, just to be sure there are no underlying health issues to worry about.


Featured Image Credit: strh, Pixabay

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Does My Indoor Cat Need a Rabies Shot? Vet-Reviewed Facts & FAQ

Like humans, cats are susceptible to several diseases that can be deadly. There’s good news, however, as there are vaccinations for most of...

Can Cats Eat Zucchini? Vet Explained Nutrition & FAQ

If your cat has started developing an interest in what you cook, you may be wondering if the crispy and crunchy zucchini would...

11 Fascinating Facts About Grey Tabby Cats (With Pictures)

If you love your grey tabby cat or are looking at adding a cute grey tabby cat kitten to your family, you’ll enjoy...

8 Best Catnips in 2026 – Reviews & Top Picks

Catnip is the dried form of the Nepeta cataria plant, which is an herb related to mint. It has an extraordinary effect on...

More related

Will Your Cat Protect You When You Sleep? Interesting Facts

Dogs are known for protecting their owners from danger, but do cats do the same? Ask cat owners that question, and you’ll find...

How Much Attention Does a Cat Need? Vet-Reviewed Facts

While cats are often perceived as independent pets, they still require daily attention from their owners. Most cats need at least 20-30 minutes...

Cornish Rex Cat: Breed Info, Pictures, Traits & Facts

The Cornish Rex cat is a unique and energetic cat that fits in most families. It was first discovered in Cornwall, England, and...

Can Cats Eat Pasta? Vet-Reviewed Diet Facts & FAQ

Cats are obligate carnivores; this we know to be true. But that doesn’t mean that our cats can’t sometimes snack on things outside...

Keep reading

Can Cats Eat Dates? Vet-Verified Nutrition Info & Facts

Can cats eat dates? The answer is not that simple. Although dates are not toxic for cats, meaning they can eat them, there are several health risks associated with this fruit when it comes to cats. Therefore, it’s best to...

Can Cats Eat Dates

Why Does My Cat Drink Out of My Water Glass? 8 Common Reasons

Cats are active animals that love to investigate the world around them. Because of that, it’s not uncommon to notice them sniffing things around the home or trying to drink water straight from the faucet. But have you ever noticed...

Cat looking at drinking glass

Do Long-Haired Cats Need Baths? Vet Approved Grooming Advice

Most felines are notorious for disliking getting wet, so bathing a cat might seem challenging. The good news is that most cats rarely need baths! But what if you have a long-haired cat? With all that hair, do they require...

gray cat newly bathe

Can Cats Eat Salmon? Vet-Verified Facts & FAQ

Cats love fish, right? Cartoons often depict a cat with a fishbone in paw and licking their lips! But that does not mean that they should eat it all the time. Before you jump in headfirst with the kitty salmon...

Can Cats Eat Salmon

10 Best Cat Toothpastes of 2026 – Reviews & Top Picks

Oral hygiene plays a significant role in the overall health of our feline friends. As humans do, cats also need a regular dental hygiene routine to keep their teeth and gums in top condition, prevent tartar buildup, and freshen their...

cat getting teeth brushed

Play Aggression in Cats: Vet-Approved Signs, Causes & Solution

It’s all fun and games with your kitty until the claws are out or they are causing mischief! All too often, we can be having a cuddle or fun time with our cat when our forearm is suddenly gripped by...

Aggressive cat growling

Do Cats Bleed After Giving Birth? Vet-Approved Facts & FAQ

If you plan to breed your cat or they’ve accidentally become pregnant, you probably have a million questions about what comes next. How long a cat stays pregnant is a good one, but there are many more. One of the...

Mother-cat-and-new-born-baby-kittens-drinking-milk-from-their-mom-breast

10 Best Dry Cat Foods in the UK in 2026: Reviews & Top Picks

Whether you feed your cat a combination of wet and dry food or just dry food, getting the right kibble is important. It should meet your cat’s nutritional requirements according to their age, health conditions, and, of course, their preferences....

grey cat eating food

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.