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

Art We Heart: We Talk to Pet Photographer Andy Stolarek

When we first heard about Andy Stolarek and Furtographs, we have to admit we were insanely jealous. “He gets to hang with animals...

10 Surprising Facts About Cat Urination (Vet-Verified)

This article has been reviewed by a qualified veterinarian using information available at the time of review. It is designed to provide general...

Can I Cut My Cat’s Nails With Human Nail Clippers? Vet-Reviewed Facts & Risks

Some cats, especially indoor cats, need to have their claws regularly trimmed. It prevents the nail from curling around and growing in on...

Low Blood Pressure in Cats: Our Vet Explains the Signs, Causes, Treatments & FAQ

Low blood pressure occurs less commonly in cats than high blood pressure does. Causes may include blood loss, severe infection, heart disease, or...

More related

Why Are Cats So Cute? 6 Scientific Reasons We Love Them

If you’re a cat lover, then you’re probably already convinced that cats are just the cutest. But did you know that there’s science...

10 Best Brushes for Long-Haired Cats (2025) – Reviews & Top Picks

Brushing your cat is a wonderful way to bond with your beloved feline, and it also helps build trust between you and your...

Cat Dermatitis: Our Vet Explains the Causes, Signs, Treatment

Feline dermatitis is a broad, non-specific medical term that means inflammation of the skin in cats. This catch-all phrase is most often used...

How to Get a Cat to Use a Cat Tree: 6 Vet-Reviewed Tips & Tricks

Cat trees keep our cats off the furniture and provide a comfy, secure place to lounge. They’re also excellent scratching outlets that minimize...

Keep reading

How to Train a Cat to Stay Indoors: 7 Vet-Approved Tips

Of the over 160 million cats in the United States, roughly 30—80 million are unowned and roaming free1. Many cats with owners also live outdoors, at least part of the time. Outdoor cats pose a risk to wildlife and are...

cute cat rearing up licking finger of the woman kneeling on the floor

Why Do Cats Purr? 5 Vet-Reviewed Reasons Behind the Behavior

There’s something soothing about sitting with a purring cat, but do you know the reasons behind that distinctive vibration? It’s commonly thought that cats purr when they’re happy and content. While this is true, it’s not the whole picture. Cats...

cat asking for cuddles

Do All Cats Scratch Furniture? Reasons & Prevention Tips

Sometimes, cats display behaviors that our owners are not fond of. For example, we have all heard horror stories about cats ruining a couch or shredding up a new lounge chair. So, do all cats scratch furniture? The truth is...

male domesetic cat scratching furniture with front claws

11 Health Benefits of Cat Grass: Vet-Reviewed Facts & Tips

Cat grass is a popular addition to many cat households, offering a variety of health benefits for our feline friends. In this article, we’ll explore 11 health benefits of cat grass, providing information on its uses, tips, and safety precautions....

Gray tabby lovely fluffy cat eating fresh green grass

Will Cats Keep Snakes Away? Facts, Dangers & Prevention Tips

When the weather warms up, you’re likely to see a few snakes in your yard, especially if you live in rural areas with plenty of long grass and other foliage that snakes love to hide in. While they’re often feared...

cat staring at snake

Under the Sun Cat Food Review of 2025: Recalls, Pros & Cons

Review Summary Under the Sun cat food is produced by parent company Canidae. As one of the largest natural cat food brands, it’s focused on producing grain-free recipes containing no corn, wheat, and soy. Its balanced recipes contain a blend...

Under the Sun Review

Can Cats Eat Wheatgrass? Vet-Reviewed Benefits & Facts

If you have a dog, chances are you’re used to asking them what they have in their mouths. On the other hand, cats can be a little fussier about what they eat, but some nibble the edges of plant leaves...

Can Cats Eat Wheatgrass

Can Cats Get Colds? Vet-Approved Signs & Treatments

Cat colds exist, but they are most often referred to as upper respiratory infections. Cats can get some of the signs of a cold similarly to what humans get, though not from humans but from other cats. When a cat...

tired sick cat lying on bed