Fleas

About Fleas

Fleas are tiny, blood-feeding parasites that usually prefer dogs, cats, rodents, and wildlife but will readily bite people when the opportunity arises. Known scientifically as Siphonaptera, they are wingless insects with powerful hind legs built for jumping between hosts and hiding places. Of the roughly 2,000 flea species worldwide, only about 325 live in the United States. They are an all-too-common nuisance in homes with pets, thriving in warm conditions and reproducing so quickly that an infestation becomes tough to clear once it takes hold.

What Fleas Look Like

Most flea species share a similar appearance. Their bodies are reddish-brown, flat, and oval, rarely larger than an eighth of an inch. They have six strong legs that let them leap more than a hundred times their own length in search of a meal. Although they cannot fly, those legs make them exceptional jumpers, and their habit of burrowing deep into fur and carpet fibers makes them genuinely hard to spot.

Habitat and Behavior

Fleas adapt to many climates but do best in dark, warm, humid spots. Outdoors they settle into shaded shrubbery, tall grass, and leaf litter, ready to latch onto a passing animal. Once indoors they gravitate to carpets, upholstered furniture, and pet bedding, staying close to the host they feed on. They are most active at night but remain semi-active by day, which lets females lay eggs around the clock. Adults feed on the blood of warm-blooded animals, while larvae develop along the floor and consume debris like dried blood and flea waste.

The Flea Life Cycle

The flea life cycle moves through four stages: egg, larva, pupa, and adult. Under ideal conditions the whole process takes just a few weeks, though it can stretch out to a year. Without a host, adults survive only one to two weeks, but with one they can live around 100 days, and females may lay up to 2,000 eggs in a lifetime. Eggs are typically laid in a host’s fur and hatch into larvae within a week. The larvae then spin debris-camouflaged cocoons, where the pupae stay protected from drying out and even from pesticides, emerging only when they sense a nearby host.

Common Types of Fleas

Cat fleas are by far the most common species in North America, feeding on house cats, dogs, and wild animals like raccoons and skunks; in fact, over 95% of fleas found on dogs are actually cat fleas. Dog fleas are less common here and more typical in Europe. Human fleas turn up where sanitation is poor and also infest pigs and wildlife. Less common species include chigoe fleas that burrow into skin, sticktight fleas that embed under the skin of birds and pets, and Oriental rat fleas, which are known vectors for bubonic plague and murine typhus.

Are Flea Bites Dangerous?

Flea bites can carry health risks, since fleas can transmit diseases such as bubonic plague and murine typhus, along with parasites like tapeworms that affect pets and their owners. Flea bites usually appear as small, red, raised, very itchy bumps clustered around the ankles, legs, and waist, which helps distinguish them from tick bites (often singular and unnoticed) and bed bug bites (typically on exposed skin after sleeping). Reactions vary from person to person, so seek medical advice if a bite causes a severe response.

How Aegis Prevents and Eliminates Fleas

Fleas are stubborn once established. Good prevention includes treating pets with veterinarian-approved preventatives, washing pet bedding often, and vacuuming frequently where pets spend time. Outdoors, keep grass short, trim vegetation, remove wood and rock piles, and seal any rodent or wildlife entry points. DIY treatments can knock down adult numbers, but they often miss the eggs and larvae hidden in carpets and baseboards, allowing the cycle to continue. The participating providers in our network target every stage of the infestation for lasting results. Call (855) 560-1396 to schedule your inspection.