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Fleas and Mites - What you Need to Know!

Fleas and mites are prevalent external parasites that can significantly impact the health and comfort of pets. While fleas are most commonly associated with cats and dogs, mites can affect a variety of animals, including all types of mammals, mammals, birds, and reptiles.

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The Flea Life Cycle

The Larval Stage

Flea larvae are small, legless, and worm-like. They feed on organic debris, including adult flea feces, which contains dried blood. Larvae develop through three molts over a period of 5 to 20 days before spinning a cocoon and entering the pupal stage.

The Egg Stage

Flea eggs are laid by adult female fleas on their host after a blood meal. These non-adhesive eggs fall off the host into the environment, such as bedding, carpets, and furniture. Under favorable conditions, eggs hatch into larvae within 2 to 14 days.

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The Pupal Stage

In the pupal stage, flea larvae spin a silken cocoon and undergo metamorphosis into adult fleas. This stage is highly resilient, with pupae capable of surviving for weeks to months, awaiting environmental cues such as warmth and vibrations to trigger emergence.

The Adult Stage

Adult fleas are the reproductive stage of the flea life cycle. They emerge from the cocoon, locate a host using environmental cues, and begin feeding on blood. Female fleas can lay up to 50 eggs per day, continuing the cycle.

External Parasite Prevention and Treatment

Effective parasite control begins with prevention, which plays a crucial role in protecting your pet from the risks associated with external parasites. If an infestation is detected, immediate treatment is essential to alleviate discomfort and eliminate the parasites. However, addressing the pet alone is not sufficient — thorough treatment of the surrounding environment is equally important to ensure complete eradication and prevent reinfestation.

Prevention

Proactive parasite prevention is the most effective way to safeguard your pet’s health and comfort. By stopping infestations before they start, you reduce the risk of irritation, illness, and the spread of parasites in your home. Consistent use of veterinarian-recommended preventative treatments ensures year-round protection and peace of mind.

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Treatment

When a parasite infestation is identified, immediate treatment is essential to relieve your pet’s discomfort and prevent further health issues. Our targeted treatment protocols are designed to quickly eliminate parasites while supporting your pet’s recovery. For lasting results, it’s also important to treat the environment and prevent future infestations.

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Environmental Care

Effective parasite control goes beyond treating your pet — the surrounding environment must also be addressed. Parasites can linger in bedding, carpets, furniture, and outdoor spaces, increasing the risk of reinfestation. Comprehensive environmental care, including cleaning and the use of approved treatments, helps ensure a parasite-free space for both your pet and your family.

Itchiness isn't the only problem!

Fleas and mites are more than just a nuisance—they can pose serious health risks to both pets and humans. Fleas commonly cause intense scratching, itchiness, and skin irritation, which can lead to redness, inflammation, and secondary infections. In more severe cases, especially in young or small animals, flea infestations can result in anemia due to blood loss. Many pets also suffer from Flea Allergy Dermatitis (FAD), a hypersensitive reaction to flea saliva, leading to persistent skin issues. Fleas are also known vectors of tapeworms and Bartonella, the bacteria responsible for cat scratch disease, which can be transmitted to humans.


Mites, including ear mites and those responsible for various forms of mange, can cause significant discomfort and lead to painful ear infections, hair loss, and severe skin conditions if left untreated. Additionally, parasites present in the environment can pose health risks to humans, including skin irritation, allergic reactions, and potential zoonotic disease transmission. Maintaining a clean environment and using appropriate preventive treatments are essential steps in reducing these risks and protecting the health of your entire household.

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Separating Fact from Fiction

Myth: Since my pet is primarily indoors they cannot have fleas or mites.

Fact: Fleas and mites can thrive in any environment, including indoors, particularly in well-controlled temperatures. These small parasites can easily hitch a ride on clothing, shoes, or other items that enter your home. Even a small opportunity is enough for them to infest your indoor space, affecting your pet.

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Myth: My pet does not have fleas/mites because I cannot see them.

Fact: Fleas and mites are often difficult to spot, especially in the early stages of an infestation. Mites, in particular, can be microscopic and cause irritation before becoming visible. Fleas and mites both have rapid life cycles, so an infestation can worsen quickly if not addressed early. Regular checks and preventative treatments are essential for detecting and managing both fleas and mites before they become a more serious problem.

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Myth: I have used the medication, and my pet is still itchy.

Fact: It can take time for the medication to work fully, as it requires the entire life cycle of fleas or mites to be completed. Even after treatment, your pet may still be itchy due to ongoing irritation from previous bites. Fleas, in particular, have a substance in their saliva that causes the itching symptoms. While the medication typically starts working within 24-48 hours, the remaining fleas may continue to bite your pet, leading to persistent itchiness. Consistent treatment for both your pet and the environment is typically needed for around 3 months to completely eliminate the parasites.

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Myth: If I treat my pet, they will go away.

Fact: Treating only your pet is not enough. Fleas also infest the environment, so it's essential to treat both your pet and your home. Vacuuming regularly, washing bedding, and using home treatments are critical to breaking the flea life cycle.

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Myth: Fleas and mites are only a problem in the summer.

Fact: Fleas can thrive year-round, especially in indoor environments. With controlled indoor temperatures, fleas can remain active throughout the year, making year-round prevention important for both indoor and outdoor pets.

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Myth: Mites are harmless, they only cause my pet to be itchy.

Fact: Mites, such as those responsible for mange, can cause severe itching, skin infections, and hair loss. Some types of mites can also be contagious to other pets and humans, making early detection and treatment crucial.

Anti-Parasite Products

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© 2016 Luckwaldt Veterinary Professional Corp. & Greenwood Park Animal Hospital

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