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.

How to Use a Flea Comb on a Cat: 4 Vet-Reviewed Steps

flea combing a tabby cat, looking for fleas

Cats are wonderful pets and generally don’t require much help from humans in the grooming and self-care department. However, our feline companions sometimes need a bit of assistance regarding things like brushing their teeth and ensuring that their coats remain healthy and free of pests like fleas.

There are four general ways to deal with the flea issue regarding cats: flea collars, topical products like Advantage, oral medications, and flea combs. Flea combs are ideal because they help you determine whether your cat has fleas at all and can efficiently remove any fleas and eggs that you do find.

Read on for more about the pros and cons of flea combing and a step-by-step guide for the process.

divider single cat paw oct 2024

Pros & Cons of the Various Treatment Methods

Flea combing can be a safe and effective way to eliminate fleas. It has the added benefit of being non-toxic and chemical free, so you don’t have to worry about exposing your cat to nasty chemicals. You can also use a flea comb to determine if your cat has fleas. Then, you can use a topical or oral product to fix the situation.

Topical Products

Topical options like Advantage, Frontline, and Vectra are highly effective, though they sometimes cause itching and skin irritation. They’re usually applied between your cat’s shoulders and neck to prevent them from licking the product away.

Most kill almost 99% of fleas within 20 minutes of application. They’re also effective in getting rid of fleas in the cat’s environment. Problems like nausea, vomiting, and lethargy can be caused if your cat ingests the product or if too much is applied.

applying flea treatment to cat
Photo Credit: Csaba Deli, Shutterstock

Flea Collars

Seresto is currently the most popular of these products and is frequently recommended by veterinarians for outdoor cats since it kills fleas and ticks. Its active ingredient is released over a period of months, and the collar is designed to break away if it gets caught on something, ensuring your kitty stays safe while exploring. The biggest issue with flea collars tends to be skin irritation.

Bayer 81857952 Seresto Flea Collar

Pills & Oral Medications

Oral medications like Capstar and Comfortis are most often used to address severe infestations. Castar eradicates all fleas on your cat’s body within 30 minutes of ingestion. Conformis takes 24 hours but works prophylactically for 30 days after your cat takes it.

Oral medications can sometimes cause side effects, such as itching, skin irritation, difficulty breathing, trembling, or seizures, but these are generally rare.

Flea combing is an excellent option for kittens that are too young to tolerate oral medications or topical treatments.

Scottish Cat with gold eyes takes a pill or medicine close up
Image Credit: Iryna Imago, Shutterstock

divider single cat paw oct 2024

The Drawbacks of Flea Combing

Flea combing often doesn’t completely eliminate fleas and their eggs, and you’ll most likely need to complete the process multiple times. It takes a lot of time and effort to gather your supplies, set up your space, and meticulously brush every inch of your kitty’s fur. Some cats are unwilling to cooperate for the length of time required for a good combing.

In addition, because you’re combing the fleas and eggs out of your pet’s fur, it can be easy to move fleas from your cat to your floor if you comb your cat indoors. Ensuring no fleas or their eggs escape can be tedious. Flea combing also doesn’t do anything to eliminate fleas that may have moved into your carpets, drapes, bedding, and furniture.

divider single cat paw oct 2024

Before You Get Started

To comb your cat for fleas, you’ll need to have the right supplies. You’ll need a flea comb, a regular cat brush, a bucket of water, cat-safe soap, newspaper, a towel, a large plastic bag, and a good vacuum. The process can take a bit of time, and you’ll need to be able to reach every part of your cat’s body.

Try using a countertop or other area that’s exam table height to make the process easier. You’ll also need to flip your kitty over to brush their tummy, so you’ll probably need a comfortable non-fabric chair. Combing your cat in the bathtub or outdoors are options that can reduce the clean-up time and prevent fleas from getting loose in your home.

How to Use a Flea Comb on a Cat

1. Fill the Bucket

Fill your bucket with cat-safe soap and a good amount of hot water. There’s no need to fill the bucket; leave plenty of room at the top to ensure the pesky fleas can’t jump out once you get started.

You aren’t going to use the water for bathing your cat, but rather to clean the comb as you remove dirt, debris, hair, fleas, flea eggs, and other matter. Your cat’s fur should be dry during the process.

Consider putting down newspaper to protect your floor and to catch any fleas or eggs that fall. Avoid using towels at this stage since they can easily catch stray fleas and flea eggs, negating your work.

Image Credit: aprilzosia, Flickr

2. Brush Your Cat

Give your pet a good brushing with a regular cat brush. Your goal is to remove any tangles and loosen dirt and debris. Flea combs have closely spaced teeth, and they’re designed to collect fleas and their eggs. However, this also means the combs can be difficult to use if your cat has tangles or unruly fur.

A quick but thorough brushing will make it easier to get all the dirt with your flea comb and reduce the number of annoying tangles you encounter. It’ll also make the experience more enjoyable for your cat, as they’ll experience less pulling and tugging during the actual flea combing session.


3. Start at the Top

Once you’re done with the regular brush, grab the flea comb and get to work. Start with your cat’s head and work methodically toward their tail. Make sure to spend extra time around your buddy’s neck, and don’t forget to comb the area underneath their tail.

Flip your kitty over, give their tummy and underarms a good going over, and finally, spend a reasonable amount of time on your cat’s paws, legs, and tail. Rince the comb off in soapy water whenever debris and dirt start collecting in its teeth.

You’ll need a complete second pass for the process to work, as fleas will move around on your cat’s body as you’re combing. Pay extra attention to flea-prone areas like your cat’s stomach, neck, and tail. Use the clean towel to give your cat a rub down. Ensure the towel isn’t close enough to the two of you during the combing to have collected any fleas!

cat and flea comb
Photo Credit: Simone Hogan, Shutterstock

4. Clean Everything Up

Allow the soapy water to sit for 10–15 minutes to drown the fleas and any other bugs you may have dislodged and collected during the combing. Roll up the newspaper, make sure not to let dirt, debris, or dead fleas escape, and throw your waste paper into the plastic bag. Dump the water outside, clean the bucket, and comb with disinfectant soap.

Make sure to vacuum the area if you comb your cat inside, and don’t forget to immediately remove the vacuum bag and dispose of it in the plastic bag. If you’re using a bagless vacuum, empty the canister directly into the plastic bag, and then rinse the canister with hot water and soap. Take the trash bag outside immediately to prevent fleas that might have survived from escaping and re-infesting your home.

divider single cat paw oct 2024Final Thoughts

With fully grown kitties, combing is probably best used to determine if your cat has fleas so you can treat the situation with an effective topical or oral product. If you’re primarily using flea combing as a diagnostic tool, you can skip the setup, and you don’t have to worry about covering every part of your cat’s body during the process.

Just run the comb over your cat’s neck or chin a few times, and look at what you pick up. If you see fleas or eggs, you can treat the situation quickly with one of the specialized oral or topical flea eradication products.


Featured Image Credit: Simone Hogan, 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 Blueberry Muffins? Vet Approved Facts & FAQ

Blueberry muffins may seem like a healthy snack because of the superfood berries, but they’re not great for you or your cat. While...

Kinkalow Cat Breed: Info, Pictures, Temperament & More

Because of their rarity, you might not have heard of a Kinkalow before, but their appearance likely makes you curious, and we can’t...

Do I Need to Get My Indoor Cat Vaccinated? Vet Approved Facts & Safety Guide

If your cat is an indoor cat that rarely ventures outside, their chances of injury and illness are likely lower, but does this...

It’s Crunch Time, Cyril: A Weight Loss Journey (Part 1)

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

More related

National Cat Lovers Month 2025: When & What It Is

National Cat Lovers Month is every December, and this year is no exception. It’s a month specifically set aside for you to sit...

Dental Disease in Cats: Causes, Signs & Treatment Options (Vet Answer)

You may first notice bad breath, difficulty eating, or even bloody droplets in your cat’s food or water bowl. No matter how it...

Catster Photo Contest: Cats of the Week Winners (May 22, 2025)

This Week’s Winner Silliest Most Dignified Best Action Shot Sleepiest Cutest Most Expressive Enter Your Cat Submit your kitty for a chance to...

At What Age Do Cats Start Getting Arthritis? Vet Reviewed Early Signs & Recommendations

Being a cat owner includes dealing with various health conditions, particularly as they age. One common condition in senior pets is arthritis, which...

Keep reading

What Can Kill a Cat? 16 At-Home Items Vets Tell Us To Watch Out For

Being a cat parent is a responsibility that should be taken seriously. Your cat needs water, food, frequent litter changes, grooming, playtime, and plenty of attention. Another considerable responsibility is ensuring that your cat is healthy and safe. This means...

cat on a counter above the washing machine

Are Cat DNA Tests Accurate? How They Work & More (Vet Approved Guide)

Cats are an integral part of our lives. If we don’t own one ourselves, we might know somebody who does. We see cats on television shows and movies, and we even think of cats during Halloween and when certain superstitions...

cat blood test

Do Cats Breathe Faster When They Purr? Vet-Verified Facts & FAQ

Felines have an impressive arsenal of vocalizations, and purring is one of the most adored. A cat’s purr is a comforting sound to many people and is instantly recognizable as a sound of contentment. When cats purr, it’s usually a...

british shorthair cat yawning and purring

Why Do Cats Trill When They Jump? 4 Vet-Reviewed Reasons

In the wild, cats remain fairly silent. Their purrs, hisses, growls, and yowls are mainly for communication, not something they do casually as they go about their day. So, why do our domestic kitties get so vocal when they jump?...

cream-colored-maine-coon-cat-jumping-over-the-couch_Nils-Jacobi_shutterestock

7 Best Calming Collars for Cats in 2025 – Reviews & Top Picks

Cats suffering from anxiety and stress can misbehave, act aggressively, and even develop health problems that can include diarrhea. It’s not always easy to help them reduce their anxiety, but many people have had success with calming collars, which use...

cat wearing a purple collar

Can a Dog Get a Cat Pregnant? Vet-Reviewed Facts & FAQ

While dogs are, without a doubt, man’s best friend, they can also exhibit strange behavior. They eat plants from the garden and sleep in awkward positions, but one of the most bizarre behaviors you may witness is your dog mounting...

Savannah Cat hugging a dog

9 Best Eco-Friendly Cat Foods in 2025: Reviews & Top Picks

Our pets do create a serious dent in the environment, unfortunately. Just like us, our pets have to eat. Growing and producing this food produces a lot of waste and has a significant impact on the environment. Luckily, though, if...

orange cat eating wet food

What’s the Price of Cat & Kitten Vaccinations in Australia? (Costs in 2025)

Whether you have an indoor or outdoor feline, you must keep up with their vaccinations. Vaccinations and booster shots keep numerous preventable health concerns at bay. But how much do cat and kitten vaccinations cost in Australia? We gathered the...

Kitten_Vaccine