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.

Does Hot Water Kill Fleas on Cats? Vet-Approved Facts & FAQ

woman bathing her cat

Having a cat in your life is wonderful, but it sometimes comes with a catch: dealing with fleas. Apart from being annoying, flea infestations can trigger allergies, irritation, and even illness. So, getting rid of them as quickly as possible is in everyone’s best interest.

Several home remedies are available, and sometimes it isn’t easy to distinguish fact from fiction. So, how well does hot water kill fleas on a cat? Hot water doesn’t kill fleas, so don’t use this to treat fleas on your cat.

divider 3 paws

How to Tell That Your Cat Has Fleas

If you’ve never dealt with fleas, you might wonder what signs to look for. Your cat might be restless and itchy. When you part their fur, their skin might look red and irritated, and you may even see small black specks. The best place to search for fleas or flea dirt (flea poop) is on their back or necks since they congregate in hard-to-reach areas.

Fleas aren’t picky, so if you have other pets, check them for signs of infestation. If you suspect your pet has fleas, your first point of call should be your veterinarian. You can discuss the next steps in your cat’s treatment plan. This is crucial, as home remedies or information you find online can be unsafe.

close up fleas on cat
Image Credit: KanphotoSS, Shutterstock

Why Doesn’t Hot Water Kill Fleas?

Water alone will not kill fleas because they can survive for around 24 hours if you manage to submerge them in water. Further, most of the flea life cycle is not on your cat, but rather in your home or environment. These forms of the flea simply aren’t easily treated with water.

divider 3 paws

How Effective Is Hot Water in Getting Rid of a Flea Infestation?

The lifecycle of a flea is incredibly complex, which means getting rid of them from your home can be tricky. There are typically four life stages: egg, larva, pupa, and adult. During the pupa stage, they are protected from repellents and insecticides for days, weeks, or however long they deem safe because an adult won’t emerge until there is a host close by, which they will sense by their body heat or movement.

This means getting rid of the fleas on your cat or any other pets in the home is only one part of a long journey.

When you contact an exterminator, be sure to mention you have pets, so they use pet-safe chemicals. Your pets and family must move to another location while the technicians treat your home.

A soapy bath may help remove the fleas on your cat, but it’s often ineffective since the flea population resides in your carpet, molding, linens, and anywhere your cat spends time in your home. There are several commercial pesticides and DIY formulas targeting fleas, but the best technique is to get a flea preventative from your veterinarian and have a professional pest control service treat your home for the pests.

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

divider 3 paws

Final Thoughts

Hot water is not an effective flea treatment, therefore, it should never be used to treat fleas on your cat. However, a warm soapy bath can provide temporary relief for your pet by removing the adult fleas. It’s important to speak to your vet about treatment methods and preventative solutions for keeping fleas out of your home since it’s the safest and most effective method for treating your cat. Eliminating an infestation is complicated, thanks to the fleas’ complicated lifecycle, but with the help of your vet and pest control expert, you can kill the fleas and help your itchy feline.

See also: 


Featured Image Credit: M-Production, Shutterstock

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

Can a Cat Sense Fear? Vet Reviewed Answer

We all know that cats do an excellent job of comforting us when we’ve had a rough day. All we need is to...

9 Ways to Keep Cats Out of a Sandbox: Vet Approved Tips & Advice

Sand is among a cat’s favorite hangout spots, and if you have an outdoor sandbox, you know how quickly cats can turn it...

Is Lysol Toxic To Cats? Ver Reviewed Concerns & Safety Tips

When you adopt a pet, you will probably find yourself cleaning more often. However, many of the cleaners that we use are filled...

Why Is My Cat Quiet Suddenly? 5 Vet-Reviewed Reasons

Any change in feline behavior is potentially troublesome. Usually, changes in behavior are associated with illnesses and stress. These underlying causes range from...

More related

Arm and Hammer Cat Litter Review of 2025: Recalls, Pros & Cons

Review Summary Cat litter is an essential item on any cat owner’s shopping list, and most of us have heard of Arm &...

Can You Build Up an Immunity to Cat Allergies? Vet-Reviewed Tips & Facts

Cat allergies are frustrating, especially when the sufferer is a cat lover. Cat allergies can cause skin rashes, nasal congestion, and asthma discomfort....

Are Heated Cat Beds Safe? Can They Be On All the Time?

Heated cat beds are becoming increasingly popular, but are they safe for cats? The short answer is yes; heated beds are safe, and...

Maine Coon Kittens for Sale in Canada: 2025 Breeders List

Excited Cats advocates for adopting before shopping, though we fully understand there are many reasons for seeking a breeder. So, we encourage it...

Keep reading

Why Does My Cat Keep Shaking Their Head? 8 Vet Approved Reasons

If you’ve noticed your cat shaking their head more than usual recently, it could be caused by several factors. It could be something really simple, like a scratch, that you can treat at home, or it might be something more...

tabby Canadian Sphynx cat tilting head

What to Feed a Cat That’s Vomiting: Foods to Help Care for Your Kitty

When your cat is sick, the last thing you want is to feed them something that will make it worse. But how do you treat a cat that’s still vomiting, and what should you do to calm their stomach? It...

What to Feed a Cat That's Vomiting

Can Cats Eat Watermelon? Vet Approved Nutrition Facts & FAQ

During the hot summer months, a slice of watermelon always sounds good. While humans enjoy it and can get plenty of benefits from this tasty snack, can cats eat watermelon? The answer is yes, cats can eat small amounts of...

Can Cats Eat Watermelon

Why Does My Cat Lick My Lips? 10 Likely Reasons

Having a cat as a family member can bring you love, adventure, and even confusion. We may never fully understand cats and some of their antics, but it’s clear cat lovers welcome most of them with open arms. When your...

Gray cat licking owners face

Why Don’t Cats Like Their Paws Touched? 8 Vet Reviewed Reasons

Any cat owner knows that a cat’s paws are among their cutest features, but most are off-limits to touching. Why is this? Why do some cats hate having their paws touched? Why do some allow it? In this article, we...

hand touching cat's paw

Can Cats Eat Silverfish? Vet-Reviewed Health Facts & FAQ

Most cat owners can attest that cats are like little toddlers; they grab anything they can and put it in their mouths. However, this can cause problems for their owners, who have to deal with the fact that their cats...

Can Cats Eat Silverfish

Safe Toys for Cats: Vet-Approved Options & What to Avoid

Providing toys for your kitty to play with is a non-negotiable part of cat ownership. They need to play not only for mental and physical stimulation but also to enforce good behavior and prevent behavioral issues. However, not all toys...

Cat playing fetch with ball

Why Does My Cat Lick Plastic? Behavior Explained (Vet-Verified)

Cat parents know that felines can do some very odd things at times. Whether suddenly running up the walls (literally) or fitting themselves into the smallest space they can find, cats engage in behaviors that seem to have no reasonable...

cat with plastic bag in the kitchen