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.

Do Flea Collars Work on Cats? Vet-Approved Facts & FAQ

tortie Oriental cat wearing flea collar

As much as we love our cats, dealing with fleas can be a huge pain. Flea collars are one method of flea prevention that many pet owners opt for, but do they actually work? The answer is yes, but they might not be the best option for everyone. They can be a helpful part of a multi-step approach considering your individual situation.

Read on to find out everything you need to know about using flea collars on cats, including whether or not they’re effective.

divider 3 paws

Do Flea Collars Get Rid of Fleas on Cats?

A lot of pet parents ask themselves this question, and the answer isn’t always cut and dry. Flea collars can be effective at repelling and killing fleas, but not all of them are equally effective. Also, because each cat is different, they don’t work for everyone.

There are a few things you need to take into account when deciding if a flea collar is the right choice for your cat.

Cat with fleas
Image Credit: Maja Marjanovic, Shutterstock

divider 3 paws

The 3 Questions to Ask if You’re Considering a Flea Collar for Your Cat

1. How bad is your flea problem?

If you only have a few fleas, a collar might be enough to get rid of them. But if you have a heavy infestation, you’ll need to use other methods in addition to the collar.


2. How will your cat react to the flea collar?

Some cats are very sensitive to the chemicals in the collar and can react to them. Others simply don’t like wearing them and will try to take them off. If your cat falls into either of these categories, a flea collar is certainly not the right choice.


3. How often are you willing to put the flea collar on and take it off?

Flea collars need to be replaced every few months, and some pet parents find this to be a hassle. If you’re not willing to put the time and effort into using a flea collar correctly, it’s probably not the right choice for you.

So, do flea collars work on cats? The answer is yes, but they might not be the best option for everyone. Consider your situation before making a decision.

beautiful cat wearing a green calming collar
Image Credit: Julia Sudnitskaya, Shutterstock

divider 3 paws

Why Does My Cat Still Have Fleas with a Flea Collar?

You’ve tried flea collars, but your cat still has fleas. What gives? The truth is that there is no way to stop fleas completely. Flea collars can help to reduce the number of fleas on your cat, but they are not 100% effective. There are a few things you can do to help reduce the number of fleas on your cat:

  • Speak to your vet about your cat’s specific needs. They can prescribe medication that will help to kill fleas and prevent them from coming back.
  • Vacuum your house regularly. This will help to remove any fleas and larvae that are living in your carpet.
  • Treat your house. Use a special flea home flea spray that stops the development of flea eggs and larvae and kills adult fleas in those areas that are especially hard to reach. Read the instructions carefully and keep your cat and family away while it works.
  • Wash your cat’s bedding in hot water. This will kill any fleas that are living in their bed.
  • Treat all the pets in the household. Otherwise, you won’t keep parasites under control.

If you are still having trouble with fleas, talk to your vet. They can prescribe medication that will help to kill fleas and prevent them from coming back.

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

How Do I Know if My Cat’s Fleas Are Gone?

Okay, you’ve tried the flea collar, but you want to make sure those fleas are gone for good. Here are a few things you can do to check:

  • Check your cat’s fur and skin for any signs of fleas or other parasites. If you see any, remove them with a fine-toothed comb, check if they are dead or alive, and dispose of them. If they are dead, your flea product is working. If the fleas are still alive, you should speak to your vet and change your strategy.
  • Inspect your cat’s coat, bedding, and sleeping areas for any flea dirt. If you find any, wash the bedding in hot water and vacuum the sleeping areas thoroughly. You should stop seeing flea dirt as the fleas die off.
  • Watch your cat’s grooming habits. If your cat is still itching and overgrooming, chances are they are still suffering from an infestation.

If you follow these steps and fleas are still bothering your cat, it is possible that the flea collar is not working. You may need to try a different method of flea control, such as oral medication or spot-on treatment. Talk to your vet about which option is best for your cat.

flea combing a tabby cat, looking for fleas
Image Credit: Simone Hogan, Shutterstock

divider 3 paws

Conclusion

Not all cat flea collars contain the same molecules and have the same efficacy. A vet-recommended flea collar might be a good option for your cat, but you should consider all your options speaking to your vet because you need to take into consideration your cat’s age, lifestyle, and severity of the flea infestation. A flea collar can be a helpful part of a multi-step approach to keeping your feline friend free of these pesky parasites.

In addition to using a collar, you should also employ regular combing and vacuuming and take your cat to the vet for regular check-ups. With a little diligence, you can help your cat avoid the discomfort of fleas!


Featured Image Credit: Anna Krivitskaya, 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 Cats Eat Ranch Dressing? Vet-Approved Nutritional Facts & FAQ

Ranch dressing is popular in the United States. It was once only used as a salad dressing, but now, the tangy mixture is...

Burmilla Cat Breed Info: Traits, Personality & Pictures

The Burmilla is a rare breed because of how new they are to the world of purebred cats. In some parts of the...

11 Best Tall Cat Scratching Posts In 2025 – Reviews & Top Picks

Cats need to scratch. However, finding a cat scratching post that works for larger cats can be challenging. Often, smaller posts just knock...

Does My Cat Hate Me? Signs, Causes & What to Do About It (Vet-Verified)

Cats don’t really feel hatred, but they can be scared, irritated, stressed, anxious, or even in pain. And these states of mind can...

More related

7 Favorite Cat Stretches (With Infographic)

Nearly every feline owner has witnessed their cat stretching in adorable ways. Cats stretch for similar reasons we do—it feels good, eases tight...

Cat Brain Development: From Kitten to Adult (An Overview)

When I put away groceries, my cat, Phillip, studies my activities carefully, following me from the pantry to the refrigerator and back again....

What Can I Give My Cat for Pain at Home? Our Vet Discusses 10 Home Remedies

Alleviating your cat’s pain is generally achieved through the use of pain medications prescribed by a veterinarian. However, there are other ways to...

Benadryl For Cats: Our Vet Explains Safety, Dosage & Side Effects

“Benadryl” is the brand name of an over-the-counter, human-use antihistamine drug. The active ingredient in Benadryl is diphenhydramine hydrochloride. Benadryl is used to...

Keep reading

Can Cats Eat Pork Rinds? Vet-Reviewed Facts & FAQ

If you frequently eat pork rinds either as a snack or as part of a meal, you’ve probably experienced your cat wanting some. After all, pork rinds are made from the skin of a pig, and pork is meat, so...

Can Cats Eat Pork Rinds

Why Do Cats Like Sitting on Laps? 5 Vet-Verified Reasons

Cats generally love to curl up and sit on laps, and it’s a favorite feline activity. If you have a lap cat at home, you may wonder why your buddy loves sitting on your lap so much. Cats sit on...

Domestic cat lying on owner's lap

Why Does My Cat Sit By the Door? 5 Vet-Verified Reasons

To many cat owners, it may seem as if their beloved kitties intentionally and precisely plan their actions to confuse us! Many of our cats’ behaviors are obvious and easily understood, but there are still more that we may never...

cat-meowing-or-trilling-by-the-door

Why Does My Cat Lick Me, Then Bite Me? 5 Reasons for This Behavior

Sometimes our cats do slightly strange things that can leave us scratching our heads. One example is when your cat licks you and then bites you soon after—What’s up with that? Some cats might give you a tiny bite that...

White cat bitting fingers

Cat Toothache Pain: Vet-Reviewed Signs & How to Help

Did you know that February is Pet Dental Health Month? It’s true, and though this facet of our pet’s care is often forgotten about, it is very essential. Just as with humans, your cat’s dental health can affect their entire...

vet checking cats teeth

Royal Canin Cat Food Review in 2025: Recalls, Pros & Cons

Review Summary Introduction Royal Canin aims to make cat foods that prioritize what pets need, rather than what their owners think they’d prefer to see on the ingredients list. Their foods are formulated in collaboration with leading scientific, behavioral, and...

Royal Canin Cat Food Review

Can Cats Eat Tomato Sauce? Vet-Reviewed Nutrition & Safety Guide

It’s dinner time, and you’re serving up your signature dish of spaghetti with jarred tomato sauce because who has time to make tomato sauce from scratch? A dollop of sauce accidentally hits the floor, and your cat, waiting patiently by...

Can Cats Eat Tomato Sauce

Why Does My Cat Sleep Between My Legs? 5 Reasons for This Behavior

We’re never going to understand our cats and their quirky behavior! If your cat loves to snuggle up for a nap between your legs, you might be shaking your head as to why, especially since you can’t easily change position!...

cute red cat sleeping on the human's legs