Can Fleas Live in Human Hair? Start Here…2024

The short answer is YES, they can. If you have a dog pet, chances are you’ve had to deal with dog fleas at some point. These pesky little creatures are not only a nuisance but can also carry diseases and make your household pets miserable. But can dog fleas live in human hair?

What Are Fleas?

Fleas are small, wingless insects known for their ability to jump long distances. They feed on the blood of animals, but not in human blood, and can often be found on livestock, on some household pets such as dogs and cats, or even wild animals. Fleas can also bite humans, though this is extremely rare.

Can fleas live in human hair

Where Do Fleas Come From?

Fleas usually enter homes on a pet that has been outside. Once inside, they lay flea eggs which hatch into larvae. These larvae then spin cocoons and transform into adult fleas. The entire life cycle takes about two weeks for flea species to thrive.

Can Fleas Live in Human Hair?

Fleas can live in human hair. However, they are not well-suited for it and will usually only take up residence there if there are no other options available. This is because fleas need a warm, humid environment to survive and thrive, and human hair is not an ideal habitat for them. In addition, fleas feed on animal blood, so human blood is not their preferred host.

That being said, if you have fleas in your home, it’s not impossible for them to end up in your hair. If you have long hair, it provides more opportunities for them to hide in hair roots. And if you sleep with your pet or make contact with pet bedding and carpet fibers, the risk of dog fleas jumping from their fur onto human hair increases.

Why Fleas Might Choose to Live in Human Hair?

Fleas tend to be attracted to warmth and darkness, and human hair provides both. However, the darkness of human hair makes it difficult for fleas to be found and removed. Additionally, the warmth of a person’s scalp provides an ideal temperature for fleas to thrive.

When a flea bites a person, it injects saliva into the skin. This saliva from a flea bite contains anticoagulants, preventing blood from clotting. Human hair is the perfect size for flea infestation. The average adult flea is about 1/16th of an inch long. This means that flea infestation can easily hide in the strands of human hair. They can also move quickly through human hair, making it difficult for people to remove them.

Can fleas live in human hair

Can Fleas Lay Eggs in Human Hair?

Fortunately, the answer is no. Fleas lay eggs on animals only. Fleas prefer the blood of animals—specifically, host animals like dogs and cats—to that of humans. Female fleas need animal blood as a food source to survive and lay their flea eggs. This is because the flea eggs must be deposited in a warm, humid environment in order to hatch. The temperature of a human scalp isn’t conducive to a flea infestation.

Of course, this doesn’t mean you’re entirely off the hook when it comes to fleas. These pesky pests can still bite a human, and flea bites can cause intense itching, allergic reaction, and irritation. But at least you can rest easy knowing that dog fleas (Ctenocephalides canis) and cat fleas (Ctenocephalides felis) lay eggs only in a host animal, not in your hair!

Can fleas live in human hair

What Do Fleas Eat?

As we mentioned, fleas feed on the host’s blood of animals. They use their long tongues to lap up the blood, which they then digest for nourishment. A single flea can consume 15 times its body weight in blood every day!

Interestingly, not all fleas feed on the blood of mammals. For example, there is a type of flea known as the bird flea that feeds on the blood of birds instead. These fleas are much larger than mammal-feeding fleas and can grow up to 6mm in length.

Do Fleas Carry Diseases?

Unfortunately, yes. Most species of fleas can carry several diseases they transmit to their hosts through their bites. Some of these diseases include typhus, plague, and cat-scratch disease.

While these diseases are rare in developed countries like the United States, they’re still something to be aware of if you live in an area where flea-borne illnesses are more common.

Can Fleas Bite Humans?

The answer is yes and no. While fleas are capable of biting humans, it is extremely rare. Most fleas that bite humans are doing so by mistake. They’re looking for a meal, and your warm skin is in the way. However, some flea species will deliberately bite a human if given a chance.

One such species is the human flea (Pulex irritans), which is considered the only one species of flea that will live in human hair. This flea is most commonly found in parts of Africa and Asia but can also be found in some parts of Europe and North America.

Human fleas are generally only a flea problem for people who live in close proximity to animals like pigs or dogs, as these are the animals that fleas usually feed on. However, if you live in an area where human fleas are present, it’s important to take precautions to avoid being bitten.

Another species of flea that will bite a human is the cat flea (Ctenocephalides felis). As its name suggests, this type of flea is most commonly found on cats but can also be found on dogs, rabbits, and other animals and even attack humans.

Cat fleas are one of the most common types of fleas found in North America and can be a real nuisance of serious infestation if not kept under flea control.

What Happens When Fleas Bite Humans?

When fleas bit a human, they inject a small amount of saliva into the skin. This saliva contains several different proteins that can cause an allergic reaction in some people. For those who are allergic, their bites can cause intense itching, swelling, and redness. In severe cases, their bites can even lead to anaphylaxis, a life-threatening condition.

Flea bites usually occur around the ankles or legs, where fleas tend to congregate on the body. However, they can bite anywhere on the body that they come into contact with. The bites typically look like small red dots on the skin surrounded by a red halo.

While most people will only experience minor discomfort from flea bites, some will have a more severe reaction. For example, suppose you experience difficulty breathing or swallowing, faintness, or swelling of the face, lips, or tongue after being bitten by a flea. In that case, it’s important to seek medical attention immediately, as you may be experiencing anaphylaxis.

Can fleas live in human hair

How to Protect Yourself From Flea Bites?

The best way to protect yourself from the bites is to prevent your dog pets from getting a flea problem in the first place. There are several ways to do this, including:

  • Use a monthly spot-on treatment or oral medication prescribed by your veterinarian.
  • Do a careful check of your dog’s fur whenever he returns from a walk.
  • Keep your yard free of debris and tall grass where fleas can hide.
  • Vacuum regularly and wash your dog’s bedding in hot water weekly.

If you do find yourself with bites, there are a few things you can do to relieve the itchiness and pain:

  • Apply a cold compress or calamine lotion to the bite site.
  • Take an antihistamine if you’re feeling incredibly itchy.
  • Resist the urge to scratch, as this can only worsen the situation.

What to Do if You Find Fleas Living in Your Hair?

The first thing you need to do is identify where the fleas are coming from. For example, if you have a dog, the fleas are likely coming from your pet. You’ll need to treat your dog for fleas and then take measures to prevent them from getting fleas again. You may also want to consider removing any carpeting in your home, as this can be a breeding ground for fleas.

Once you’ve identified where the fleas are coming from, you must get rid of them as quickly as possible. The best way to do this is to use a Flea Comb. A Flea Comb is a special comb that has excellent teeth that can help remove fleas from your hair. Start at the roots of your hair and work your way down, combing through each section slowly and thoroughly. Be sure to check the teeth of the comb frequently and remove any fleas that you find.

You can also use lice comb if you don’t have a comb. Lice combs also have very fine teeth that can help remove fleas from your hair. Start at the roots of your hair and work your way down, combing through each section slowly and thoroughly. Be sure to check the teeth of the comb frequently and remove any fleas you find.

Once you’ve removed all fleas from your hair, you need to prevent them from returning. The best way to do this is to keep your hair clean and debris-free. Wash your hair regularly with a mild shampoo and conditioner.

Avoid using products that contain harsh chemicals as these can kill both good and bad bacteria on your scalp, leaving you vulnerable to infection.

Can fleas live in human hair

Home Remedies to Treat Fleas From Living in Your Hair

If you have pets, then finding a flea in your hair is not that surprising. Fleas live in warm-blooded animals, lay eggs, and will happily jump from your pet onto you if given a chance.

If you don’t have any pets, then it’s possible that the flea hitched a ride into your home on someone else’s clothing or furniture. Either way, once fleas get into your home, it can be tough to eliminate fleas.

The good news is that there are some things you can do to get rid of fleas living in your hair. Below are some home remedies that will help get rid of fleas for good to avoid new fleas!

1. Comb your hair with a fine-toothed comb for flea treatment. This will help stop fleas that are currently living in your hair. Be sure to comb through every section of your hair and pay special attention to the roots, as this is where most fleas will hide.

2. Wash your hair in diluted form with a flea treatment shampoo such as tea tree oil shampoo. There are many different types of anti-flea shampoos on the market, so be sure to read the label carefully to find one that is safe for use in humans. If you decide to buy tea tree oil shampoo, follow the directions on the bottle, and be sure to rinse your hair with warm water afterward.

3. Apply an anti-flea lotion or spray to your hair to avoid infestation. These products can be found at most pet stores and help kill fleas that come into contact with them. Be sure to follow the directions on the bottle and avoid getting the product into your eyes or mouth.

4. Vacuum regularly. Vacuuming is one of the best ways to avoid flea infestation in your home. Be sure to vacuum all carpets, rugs, furniture, and other areas where fleas may be hiding. After vacuuming, dispose of the bag immediately so fleas cannot escape back into your home.

Can fleas live in human hair

Final Thoughts

Fleas can be a nuisance, but if you take the proper precautions, you can avoid them. Be sure to comb your hair regularly with a Flea Comb or lice comb and wash it with a flea treatment shampoo. You should also vacuum regularly and apply an anti-flea lotion or spray to your hair. By taking these steps, you can avoid fleas living in your hair and keep your home free of these pests.

Frequently Asked Questions


The appearance of red welts, bumps or pus filled blisters on the neck and scalp are all symptoms that could indicate flea bites.


Learning about fleas can help avoid an infestation or manage existing problems. However, while these small parasites might be able to lay eggs on our scalp, the chance for this is rare, and not many people have experienced it.


Bathing your pet is one way to get rid of fleas. Add lukewarm water or a slightly cool bath with mild soap, and you’ll have all the dirt off in no time.


If you have a pet, keeping them away from other animals and their infested bedding is important. Fleas don’t live on people; they’re most likely to bite an ankle or leg when jumping into our homes via cars carrying flea-bitten rats as passengers.