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Pediculosis is a skin infestation caused by lice, which are small, wingless insects that feed on blood. The most common types affecting humans are head lice (Pediculus humanus capitis), body lice (Pediculus humanus humanus), and pubic lice (Phthirus pubis).123

These infestations are diagnosed by identifying nits (egg capsules) attached to hair shafts or by seeing the lice themselves. Head lice are found on the scalp and hair, while body lice live in clothing seams and feed on the body. Pubic lice typically infest the pubic and perianal areas, but can also appear on other hairy regions.123

Lice infestations can cause itching and skin inflammation, and in some cases, may lead to conditions like eczema. Body lice can also transmit diseases such as epidemic typhus, trench fever, and relapsing fever. Infestations are often treated with medicated lotions or shampoos, and proper hygiene is crucial for prevention and management.321

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