cat banner used in flea page

How do I know if my cat or dog has fleas?

There are many signs that an animal has fleas. Here are a few.

appearance of a cat flea

You can see Fleas on your cat or dog

Put your glasses on, grab a cat (gently) and go to a well lit spot. It helps if someone is there to distract the cat while you look for fleas.

There are several spots that are good to check for fleas. Any area such as around the tail, where your cat or dog can't scratch should be checked. In particular the lower back and base of the tail. You have to move fast because the flea moves very quickly in the hair. If you don't know what a flea looks like check out the "what do fleas look like page". You might only see something moving through the cat fur very quickly. Another good spot is between the legs and in the animal's armpits or where his armpits would be if he had them. The whole belly area should be checked. Fleas can be reddy brown to black.

If your cat doesn't mind taking a bath, then give puss a bath and check the head because fleas will usually find their way to the top of the head where things are drier. None of my cats like baths so that's not a good option.

Dogs are usually easier to bathe.

Sometimes if the animals have been away for a while and comes back to the home after holidays for example, then you might see fleas jumping on you or the cat after a day or so. Fleas emerge from their cocoon very quickly when they feel there is food around. The pupa waits till it can sense heat, vibrations, or carbon dioxide from an animal, and if you were away it might have waited.

What other signs are there that my cat or dog has fleas?

Checking for flea dirt is a good way of confirming a flea infestation

Flea Dirt is the dropping of mature fleas. This flea poo looks like little black grains.

When a flea feeds the droppings are left on the cat or dog and this flea dirt can fall on the bedding or anywhere else the animal sleeps, including your bed.

it's very easy to check for flea dirt on a cat or dog. Put your friend on a newspaper or white sheet, or in the dry bathtub, and ruffle his fur backwards and forwards. This will make any flea dirt fall on the piece of paper.

To check if the black spots are flea dirt rather than just old fashioned dirt, take a wet paper towel and wipe up the specs that fell on the newspaper. If it's flea dirt then wetting it will make the spots red or brownish red, because of the high blood content. If the spots stay black then they are not flea dirt.

You can wipe the animal's bed with a damp paper towel and check it for bloody spots.

Many cats and dogs have flea allergies

If your cat or dog has lots of little sores in front of his tail then it is very possible he is allergic to fleas.

Feline milliary Dermatitis

Feline Milliary Dermatitis is sometimes caused by cat allergies to flea saliva. One single bite can trigger the reaction.

It's possible for your cat to have a very low level of flea infestation where you cannot see any adult and there are not enough fleas to make flea dirt for you to find. If the cat receives only a small number of bites it can still react.

In that case you might want to check with your vet to confirm that there are fleas, even in tiny numbers. I have a page on cat allergies.

It's not unusual for dogs to lose hair and sometimes smell bad if they have a heavy flea infestation.

Another sign to watch for is scratching or excessive grooming

An animal that has fleas is not comfortable and will scratch and bite his fur energetically. If you see your cat or dog doing this then suspect fleas even if you don't find any signs. Itchy skin can be a sign of allergy but biting the sides is usually a hunt for a flea. An energetic healthy cat can reduce his flea load by 50% by active grooming. Kittens and older cats are not so successful. Dog are also not as good as cats in grooming out fleas. Not only do they not groom as much but they can't reach as well as a cat.

Some dogs or cats will groom to excess if they have fleas. This and scratching can cause sores or hair loss.

Heavy flea infestations sometimes are accompanied by infections. Fungal or bacterial infections will need to be treated by a vet, along with treating the animal for fleas. Suspect an infection if the area smell particularly bad.

Anemia is a possible result of flea infestation

If you keep an eye on your cat or dog it is unlikely that it will have so many fleas that it becomes anemic from blood loss. Kittens are more likely to suffer from anemia than mature cats. So check your cat regularly. A lethargic listless animal with pale nose and gums could be anemic.

So what's the next step?

If your cat is flea free, doesn't go outside and you can find no sign of flea infestation, and no scratching then you are lucky, and so is your Friend. Keep an eye on it, keep the bedding vacuumed and check regularly. Why treat a clean animal?

If you suspect an infestation because your dog or cat is scratching or has sores, but you can't find anything, then check with your vet to see what he or she suggests. It is not necessarily fleas.

The same goes for a listless pale animal. The gums will be very pale if it's anemic. Suspect fleas but check with your vet before treating a potentially sick animal.

Don't randomly treat your cat. There are several products available from the vet that are much safer than what you can buy at the pet store. NEVER USE DOG FLEA PRODUCTS ON A CAT. Cat are not capable of getting rid of poisons very well and you could kill your cat.

If you have found signs of fleas on your pet then you need to take steps to control the fleas.

If your dog or cat goes outside or you have dogs that go out and cat's that don't then it is unlikely you will get rid of fleas completely. You can do a good job of controlling them though.

Read my Flea Control Page

The photos come mostly from Wikipedia, the flea picture from Wikipedia.
emails: Christine

This article is provided for information only. It is not to be used instead of consulting a VET. If your kitty is sick get some help.