Head lice

Lice in a person's hair part, with close-up of louse and louse eggs (nits).

Adult head lice (or "louse" for just one) are approximately the size of a sesame seed and can vary in color from white to brown to dark gray.

Louse eggs (nits) are much smaller and look like light gray or brown ovals that are glued to individual hair shafts.

Head lice spread from one person to another through close bodily contact. Sometimes they spread when people share clothing or personal items such as hats or hairbrushes.

Current as of: December 4, 2024

Author: Ignite Healthwise, LLC Staff
Clinical Review Board
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: December 4, 2024

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

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