What are fleas on humans called? - briefly
Human‑infesting fleas are known as the human flea (Pulex irritans). They differ from cat or dog fleas and specialize in feeding on human blood.
What are fleas on humans called? - in detail
The flea that commonly bites humans is the human flea (Pulex irritans). It belongs to the order Siphonaptera and is a true flea, sharing the characteristic laterally compressed body, powerful jumping legs, and siphoning mouthparts. Although it can feed on a variety of mammals, it prefers humans when they are readily available.
Key characteristics
- Small, dark‑brown, 1.5–3 mm long.
- Lacks the combs (ctenidia) found on cat and dog fleas.
- Lives primarily in the environment (bedding, carpets) rather than on the host.
Medical relevance
- Bites cause pruritic papules, sometimes forming clusters.
- May transmit Yersinia pestis (plague) and Rickettsia species, though such events are rare in modern settings.
- Secondary bacterial infection can develop if lesions are scratched.
Diagnosis and treatment
- Identify bite pattern: small, grouped, itchy lesions on exposed skin.
- Confirm presence of adult fleas or larvae in the living area using a flea comb or sticky traps.
- Apply topical insecticides (e.g., permethrin) to infested zones.
- Wash bedding and clothing at ≥60 °C; vacuum carpets and upholstery thoroughly.
- Use antihistamines or topical corticosteroids to alleviate itching.
Prevention
- Maintain regular cleaning of sleeping areas.
- Reduce wildlife access to the home; seal cracks and gaps.
- Treat pets with veterinarian‑approved flea control products to limit cross‑infestation.
The term “human flea” accurately describes the species that bites people and distinguishes it from pet‑specific fleas such as Ctenocephalides felis (cat flea) and Ctenocephalides canis (dog flea).