Skip to main content

Why do cats have whiskers? The answer is more in-depth than you think

If you already love cats, then you’ll be one of the first to tell everyone you know how cute they are. From their bright eyes and adorable ears to their whiskers and expressive tails, cats are undoubtedly one of the most precious creatures to walk the planet. But did you know there’s actually a scientific reason we think cats are cute?

In fact, science can explain just about everything these days, including one of life’s greatest cat-related mysteries. A cat’s whiskers are one of its defining characteristics, but have you ever wondered, “Why do cats have whiskers?” We’re here to give you the full scoop. 

A closeup of a gray cat's whiskers.
Image used with permission by copyright holder

What are whiskers?

Just like most mammals, cats are covered from head to toe in hair. While their whiskers grow from hair follicles just like the rest of their coat, whiskers are thicker and rougher in texture than the hair that covers the rest of their body. The whiskers’ roots are also around three times deeper than the roots of normal hairs. Some variation can occur in different cat breeds, but for the most part, all cats have 12 whiskers on each side of their face, which grow in rows of four on each cheek. Whiskers can also be found above your cat’s eyes, on her forelimbs, and located close to her ears.

Unlike the rest of your cat’s coat, her whiskers are incredibly sensitive because the follicles they erupt from are full of nerves and blood vessels. In fact, the nerve clusters surrounding a cat’s whiskers are so sensitive that they can detect even the slightest air current, which causes vibrations in the whiskers. According to Dr. Bruce Kornreich, the director of Cornell University’s Cornell Feline Health Center, “Whiskers are special. In the follicles, there are sensory neurons that go to the brain to give information about tactile interactions with the environment.” 

Why do cats have whiskers?

Not only are cats’ whiskers adorable, but they’re also extremely functional. Cats use their whiskers in a variety of ways, including:

Fitting into tight spaces

If you’ve ever watched your cat investigate a box or another small space by poking her head inside, you’ve witnessed one of the most interesting ways cats use their whiskers. Because cats can’t measure spaces with a ruler, they use their whiskers to assess how large nooks and crannies are, allowing them to fit into tight spaces. 

Protecting their eyes

The whiskers located above a cat’s eyes and above their top lip help capture airborne dust and debris, preventing them from scratching their delicate eyes. When a cat’s whiskers detect a foreign object, it causes them to blink to shield their eyes from harm. A cat’s whiskers also help them detect the presence of sharp objects, such as the corners of furniture.  

A person petting a long-haired cat.
Image used with permission by copyright holder

Built-in radar detection

A cat’s whiskers can sense even minute changes in air currents, allowing them to find their way through their home in the dark. For outdoor cats, this intense awareness of vibrations allows them to sense the presence of approaching vehicles, predators, or prey animals. 

Making up for poor vision

Interestingly, cats are actually nearsighted but not close-sighted, meaning that their large eyes are incapable of focusing on objects less than a foot away. Fortunately, their whiskers come in handy, allowing them to sense where objects are located by touch – or by relying on the way air currents move around objects in space. In fact, a cat’s whiskers are so sensitive that they can even sense the texture of an object. 

Telling their mood

Lastly, a cat’s whiskers are a solid indicator of its mood. If they hold their whiskers flat against their face, they’re most likely scared. Relaxed whiskers projecting toward the sides of their face mean they’re feeling calm and comfortable in their surroundings.  

Do whiskers ever grow back?

Some cats like to play rougher than others, and sometimes whiskers need to be trimmed by the vet during certain procedures. Whether your feline friend has damaged her whiskers while roughhousing with a playmate or had them trimmed by a vet, you might be wondering how it will affect her sense of navigation. But we have good news: As long as the hair follicle remains intact, your cat’s broken or damaged whiskers will grow back just fine. While cats typically don’t lose more than a couple of whiskers at a time, losing a whisker or two during the shedding process is perfectly normal.

A closeup of an orange tabby nestled in a gray blanket.
Image used with permission by copyright holder

In conclusion

Who knew whiskers were so complex? Now that you know more about the science behind your fur baby’s whiskers, you’ll be able to make sense of why your cat twitches them so frequently as she stalks through the house. If only our GPS apps worked as reliably as a cat’s whiskers. 

Editors' Recommendations

Mary Johnson
Mary Johnson is a writer and photographer from New Orleans, Louisiana. Her work has been published in PawTracks and…
How long do cats live? The answer may actually depend on their human parent
Learn about the average cat life expectancy and how you can extend it
Kitten sitting on a tree stump in front of a tree

Cats are wonderful additions to our families, and they can quickly become beloved family members. But, like most pets, cats have shorter lives than humans. As tragic as this is, it's only normal to want to spend as many years as possible with your cat. Fortunately, there are many ways you can help increase the chances of your cat living a long and healthy life.
But it's also important to be realistic about your cat's lifespan. How long do cats live? First, it's important to remember that cat life expectancies are really just a guideline — it's best to just appreciate and enjoy each day you can share with your fur baby.

How long do cats live as pets?

Read more
Family member allergic to cats? Where to find hypoallergenic cats for adoption
Here's how you can have a cat even if you have allergies
Bengal cat peering around a row of potted plants

While our opinions may differ on innumerable issues, there is a universal constant we can all agree on: No one enjoys suffering from allergies. If you're dealing with itchy eyes, a running nose, constant sneezing, coughing, wheezing, or even hives, then you're suffering from an allergy to something in your immediate environment.
Maybe it's just pollen, but it can also be ... your cat. Cat allergies are relatively common, but just because someone in your family has cat allergies doesn't mean you have to give up your dream of being a cat parent. From bathing your cat to allergy treatments, there are a few tips you can use to limit exposure to allergens. Even better, you might even find the purr-fect solution waiting for you in a local shelter. Keep reading to learn more about hypoallergenic cats for adoption.

Should I adopt a cat if I'm allergic?

Read more
Why do dogs hate cats? The truth behind this age-old grudge
Find out what's behind the dog and cat rivalry that's been around forever
A black pug and a tabby cat sit on a table

Even if you've never been around dogs or cats, you've probably heard about their rough relationship. Cats and dogs are rivals at best and enemies at worst -- right? It sure seems that way when there are thousands of stories and even videos of dogs and cats not getting along. Whether you've witnessed a dog-cat chase with your own eyes or have heard your pup barking at the neighbor's cat at all times of the day, it's only natural to wonder, "Why do dogs hate cats?"
Some dogs couldn't care less if a feline friend stopped by for a visit -- that's true -- but plenty of other pups would go positively bananas. So what's the difference?

Why do dogs hate cats?
While it's easy to assume that dogs and cats "hate" one another because of their vast differences, it's a bit more complicated than that. Even dogs that regularly chase cats don't do so out of malice or hate. It's an instinctual thing!

Read more