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

9 Interesting Facts About Cat Whiskers You Need to Know

Have you ever wondered what purpose cat whiskers serve? Surely, they are not there for looks, right? Of course not. Cat whiskers, indeed,...

5 Ways Cats Bring Families Closer Together: Vet-Verified Benefits & Tips

Since their personalities are so diverse, our feline friends adapt to family life in different ways, but they all have one thing in...

How to Keep Your Cat Safe at Christmas: 5 Christmas Dangers & Opportunities for Cats

While we humans relish the hustle, bustle, and merriment of the holidays, our feline family members might not feel the same way. In...

How to Stop Your Cat Scratching the Sofa: 7 Vet-Approved Ways

We love our cats, but that doesn’t mean that we love their habits. One of the behaviors that many cat owners complain about...

More related

5 Most Common Cancers in Cats (Vet Answer): Signs, Causes & Treatments

It’s an unfortunate reality that cats are susceptible to cancer, just like humans are. Advances in veterinary medicine and pet care are making...

Can Cats Eat Jelly (Jam)? Vet-Reviewed Facts to Consider

Spreading jelly on your morning toast or putting it in a sandwich is an easy, delicious way to make a quick meal taste...

I & Love & You Cat Food Review in 2025: Recalls, Pros & Cons

Review Summary I and Love and You cat food has been making waves in the pet food industry for the past several years....

Will Cats Protect Chickens? Our Vet Answers

Cats are natural predators, and the impact they have on the environment is well investigated. Cats kill billions of birds each year in...

Keep reading

Why Does My Cat Lie on Me? 5 Vet-Reviewed Reasons

We all love to spoil our cats, so they tend to get new toys and tasty treats more often than we do! Seeing them napping in odd spots around the house inspires many cat owners to purchase a special cat...

cat sleeping in owner's arms

Can Cats Eat Takis? Vet-Reviewed Precautions & Health Guidelines

Did you know that cats only have 473 taste buds1? Humans have about 9,000 taste buds. This means that a cat lacks a lot of flavor sensors, mainly sweet and also spicy. These flavors simply don’t register the same as...

Can Cats Eat Takis

6 Alternative Types of Natural Cat Litter: Vet Approved Options

If you’re searching for a new cat litter or natural alternative to the traditional clay litter, you are in the right place. Many cat owners (and some cats) don’t care for the clay-based litters—either the feel of these litters or...

woman cleaning cat litter at home

Is It True That All Cats Get Hairballs? Vet-Reviewed Facts & FAQ

Have you ever been woken out of a deep sleep by the sound of your cat dry heaving on the bedroom floor? More importantly, have you ever fallen right back to sleep without dealing with the results and stepped out...

cat hairball

Why Does My Cat Lay, Sleep, or Play in the Litter Box? 6 Vet-Reviewed Reasons

It is more common than you might think to see a cat lying or even sleeping in their litter box, and it is usually an undesirable action. It can be a sign of illness or may indicate that your cat...

two cats looking at the litter box

How to Switch Cat Foods: Vet Approved Tips for Transitioning Your Cat’s Diet

Whether it’s because you think that your cat’s current food is no longer appropriate for them, it’s become impossible to find, or your pet simply refuses to eat it anymore, sometimes you have to switch your cat to a new...

white himalayan persian licking lips

Can a Litter of Kittens Have Different Fathers? Vet-Verified Facts & FAQ

Most of the time, littermates resemble each other a great deal, sharing colors and body shapes at the very least. But sometimes surprises crop up, with one or two kittens who look different from their siblings. So, what could be...

tabby mother cat feeding her kittens

10 Best Cat Treats for Picky Cats (2025) – Reviews & Top Picks

You spend hours at the pet store picking out the best treats for your cat, only for them to be rejected without so much as a taste! Cats are notoriously picky, but some of them are obviously pickier than others....

devon rex cat eating