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  1. Lice - Symptoms and causes - Mayo Clinic

    Oct 14, 2025 · You get lice by coming into contact either with lice or their eggs. For head lice, female lice make a sticky substance that holds each egg to the base of a hair shaft.

  2. Lice: How To Tell if You Have Them - WebMD

    May 5, 2024 · Lice is a common concern that can cause intense itching. Learn the three forms of lice and how to identify a lice infestation.

  3. About Head Lice | Lice | CDC

    Jun 4, 2024 · Head lice are parasitic insects that usually live on your scalp. Symptoms include itching, tickling, or sores on your scalp. Both prescription and over-the-counter medications …

  4. Lice Infestation - Skin Disorders - Merck Manual Consumer Version

    Lice are barely visible wingless insects that infest a person's head, body, or pubic area. They spread easily from person to person by close contact and shared clothing and other personal …

  5. Lice (Head Lice, Body Lice, Pubic Lice) - eMedicineHealth

    Read about head lice, body lice, and crabs, or pubic lice. Learn about lice symptoms, signs, prevention, and treatment with medicated shampoos. A head louse can lay seven nits per day.

  6. How do you get lice? Causes and risk factors - Medical News Today

    Jun 26, 2023 · In this article, learn about the causes of lice, which groups of people are most at risk, and what treatments are available. We also explore symptoms and when to see a doctor.

  7. How Do You Get Lice? Causes and Risk Factors - Health

    Sep 30, 2025 · Lice are parasites that survive on your body by living off your blood. Three types of lice impact humans: head lice, body lice, and pubic lice.