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

Share

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

Rescue Cats Deserve Beautiful Endings

We all know that beauty is only skin deep, and that scars always tell a story, and this is one cat with a...

Ask Dr. Paola – Help! My Cat Gets Diarrhea from Wet Food! (March 23, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Cat Shampoo Alternatives That Are Already in Your House

If your cat has ever gotten into something disgusting and you’ve found yourself without cat shampoo, we’re here to help. Before you panic...

Licky Treats: A Scientific Investigation into the Tube-Based Delights Taking Over Modern Cat Households

By Professor Lucifer Fluffovich, Department of Applied Snackology Human civilisation has produced many inventions of questionable usefulness: vacuum cleaners, pyramids, and the laser...

More related

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...

Why Do Seemingly Healthy Old Cats Suddenly Get Sick & Die? 5 Possible Reasons (Vet Answer)

One of the hardest parts of owning a pet is the inevitable end when we have to say goodbye. In many cases, we...

How To Keep Possums Away from Cat Food: 11 Great Ways

Possums are a common problem for pet owners. No one likes to find a possum raiding their cat’s food bowl. They are attracted...

Skoon Cat Litter Review 2026: Recalls, Pros & Cons

Skoon Cat Litter is a brand of non-clumping cat litter that’s made with diatom pebbles, which is more environmentally friendly than other litter...

Keep reading

Can Cats Eat Plums? Vet-Reviewed Facts & FAQ

Cats are curious creatures that often conduct investigations with their mouths. While cats generally won’t eat foods that aren’t good for them, curiosity may get the better of them from time to time. You should do your best to keep...

Can Cats Eat Plums

Disaster Preparedness for Cats: 12 Vet-Approved Steps to Take

No one likes to think it could happen to them. After all, we have cell phones and technology that can alert us to potential disasters well before they strike. Yet, many dismiss the power and destruction of these catastrophic events,...

cat walking next to its owner

Can Cats Kill Weasels? Our Vet Explains

The domestic cat is the most popular pet animal in the world today. Domesticated thousands of years ago, cats have followed humans all over the world throughout history. As a result, they’re considered invasive in many parts of the world,...

Siberian Weasel

Do Cats Masturbate? Feline Behavior Explained

Sometimes, being a pet owner means dealing with awkward situations. Many dog owners complain about their pet’s tendency to hump objects, but did you know that cats can also display similar behavior? Obviously, this can be an uncomfortable and unpleasant...

brown cat licking grooming its genital

Why Do Cats Sit on Squares, Even If It’s Just Tape? 8 Vet-Reviewed Reasons

For some odd reason, cats seem to enjoy sitting on squares. They’ll even sit on pieces of tape that look like tiny squares, which can be quite comical. But why do cats love sitting on squares so much? Here are...

Cat inside a square made of tape

10 Cat Foods That Have Never Been Recalled (2026 Update)

As a cat owner, you put faith in the pet food industry to provide your kitty with the nutrition that they need to live a long and healthy life. But what happens when the industry fails you? Pet food recalls...

siamese kitten eating from a stainless bowl

Can Cats Eat Dill? Vet-Reviewed Facts & FAQ

Are you looking for a cheap and effective treat for your cat? Or are you worried because you just caught your cat chowing down on your dill plant? Either way, you’ve come to the right place. Dill is safe for...

Can Cats Eat Dill

Cat Water Fountains: Vet-Reviewed Pros & Cons

Cat water fountains are unique tools that can help cats stay hydrated. Cat water fountains are known to draw your cat’s attention, as they are specifically made to appeal to our feline companions. Since cats instinctively search for moving water,...

Cat with water dispenser

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.