Skip to main content

This is what a flea looks like, and it’s disgusting

You definitely don't want these gross bugs to take over your house and bite your pets

We could have gone our whole lives without seeing a flea up close under a microscope — they’re terrifying! Most of the time, when you spot a flea, it’s outside in the grass, or unfortunately, on your dog or cat. It’s not pleasant, but at least at such a small size, it’s tricky to make out any kind of identifying details (imagine if one of these creatures was actually large enough to look at without magnification assistance).

While it might spook you to take a look at a flea up close, you should be even more concerned about spotting them in the wild, where they might be snacking on your pet and infesting your home.

Dog scratches their side while in the grass
Katrina_S / Pixabay

What do fleas look like?

If you gaze upon the close version of this insect, you’ll spot the telltale six legs, brown or reddish body, and tiny needle-like appendages for sucking blood (fortunately no wings). Instead of flying, these little buggers jump from person to pet to grass. They feast on blood from mammals, so they’re coming for you and all your furry friends. To the naked eye, you’ll likely spot a tiny blackish speck that could be deep in your dog’s fur or even crawling on your floor.

Recommended Videos

What do fleas do to pets?

Mostly, eat them. As with other biting bugs, they inject a bit of anticoagulant in order to keep the blood flowing —  that’s part of where the itchiness comes in. You’ll notice red spots and lots of scratching if they wind up on your dog or cat. These pests can also cause other more serious problems, such as tapeworm and anemia, so you want to take care of this quickly once you discover the infestation.

What treatment is available for fleas?

Luckily, a little maintenance usually prevents these parasites from moving in. You have a few options to use as a preventative, including oral, topical, or removable. Many choose to give their pets a chewable or a pill (and some combo pills are available that tackle multiple freeloaders at once, like heartworm and fleas).

Alternatively, look into collars that can come on and off as necessary or a gel that goes on the pet’s back. As with all medications, carefully follow the instructions. You don’t want to give your little guy too big a dose, which can cause sickness. If the fleas do set in, you should also look into shampoos and combs to tackle the issue.

In your house, you need to follow regular cleaning routines to ensure fleas stay out and don’t wind up living in your home between meals. That means vacuuming all carpet and washing pet bedding or pet clothes consistently, including blankets and sweaters. Remember that even if your animals have been treated, they still might come into contact with these bugs outside on walks. Fleas can easily hitch a ride and then find another unsuspecting critter in the house — for example, a dog could accidentally bring fleas in that then grab onto an indoor cat. We actually recommend treating all fuzzy household members even if they don’t spend any time around bugs themselves.

Rebekkah Adams
Rebekkah’s been a writer and editor for more than 10 years, both in print and digital. In addition to writing about pets…
Why is my dog whining? 6 reasons and how to stop it
Check out the possible causes of this behavior
Sad dog resting his head near a shoe

Let’s be honest: No matter how much we love our fur babies, living with a dog that's a whiner can drive you crazy. Whining can be irritating, heartbreaking, and even anxiety-inducing for owners. Whether it's distracting you from work, making you sad to leave the house, or making you worry that something is wrong with your dog, figuring out why your dog is whining and what you can do about it is important.

No matter how disruptive it is, always remember that whining is a form of canine communication, say training experts at the ASPCA. The key is to properly interpret the noise and figure out how to work with them on it, to try to answer the question, "Why is my dog whining?"
Whining may seem like a random behavior, but it has causes

Read more
How much should newborn puppies eat? Follow this feeding guide
Here's what you need to know about feeding newborn puppies
Bottle feeding a newborn puppy

Having newborn puppies around can be such a gift, but there's also a lot of work involved. You need to keep their enclosure clean, make sure they're fed, and stay on top of their health in a multitude of ways. Luckily, we're here to help you navigate your new puppies' feeding routine with a newborn puppy feeding chart.

Whenever possible, newborns should consume their mother's nutrient-rich milk, which helps protect them from illness while their immune systems develop. It's the perfect food for them! However, it's not always possible for a mama dog to feed her litter all by herself.

Read more
How cold is too cold for your dog? When you both need to stay inside
Signs that your dog is too cold in the outdoor winter conditions
An Australian shepherd playing outside in the snow

Your dog is more than just your constant companion; they're also a beloved member of the family. No matter the season, frequent exercise, a well-balanced diet, and outdoor playtime are essential to your dog's health and happiness.

Not only does exercise prevent obesity, but it also provides the mental stimulation your pup needs to lower the risk of mental health issues, such as depression and anxiety. We're all aware of the potential dangers of overheating, but what should we do when temperatures drop? At what point is taking your pup outside for a walk more harmful than helpful? How cold is too cold for dogs?

Read more