What is the condition called when you have lice? - briefly
The condition is called pediculosis, often described as a lice infestation. It may involve the scalp, body or pubic region depending on the lice species.
What is the condition called when you have lice? - in detail
The medical term for an infestation of lice on the human body is pediculosis. Pediculosis is classified according to the site of infestation: head pediculosis (head lice), body pediculosis (clothing lice), and pubic pediculosis (pubic lice). The condition results from the presence of live lice and their eggs (nits) attached to hair shafts or skin.
Symptoms typically include itching caused by allergic reactions to lice saliva, visible live insects or nits, and, in severe cases, secondary bacterial infection from scratching. Diagnosis relies on visual inspection of hair or skin under adequate lighting, often using a fine-toothed comb to separate nits from hair strands.
Treatment options are divided into chemical and non‑chemical methods:
- Topical pediculicides: permethrin 1 % lotion, pyrethrin‑based shampoos, malathion 0.5 % lotion. Apply according to label instructions, repeat after 7–10 days to eliminate newly hatched lice.
- Mechanical removal: wet combing with a fine-toothed lice comb, performed every 2–3 days for two weeks. Effective for resistant infestations and for individuals who cannot use chemicals.
- Oral agents: ivermectin or spinosad, prescribed for resistant cases or when topical treatment fails.
- Environmental control: washing bedding, clothing, and towels in hot water (≥ 60 °C) or sealing items in plastic bags for two weeks; vacuuming furniture and carpets to remove displaced lice.
Prevention strategies focus on minimizing head-to-head contact, avoiding sharing personal items such as combs, hats, and headphones, and conducting regular screenings in schools or group settings. Prompt treatment of identified cases interrupts transmission cycles and reduces the prevalence of pediculosis in communities.