09/02/2012 08:00 PM EDT
Source: UpToDate
Related MedlinePlus Page: Head Lice
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National Institutes of Health
Head Lice
Also called: Pediculosis
Head lice are parasitic wingless insects. They live on people's heads and feed on their blood. An adult is called a louse and is about the size of a sesame seed. The eggs, called nits, are even smaller - almost like a dandruff flake. Lice and nits are easiest to detect at the neckline and behind the ears.
Head lice are extremely contagious. Close contact or sharing personal belongings, such as hats or hairbrushes, puts people at risk. Children ages 3-11 and their families get head lice most often. Personal hygiene has nothing to do with getting head lice.
Symptoms are
Head lice are extremely contagious. Close contact or sharing personal belongings, such as hats or hairbrushes, puts people at risk. Children ages 3-11 and their families get head lice most often. Personal hygiene has nothing to do with getting head lice.
Symptoms are
- Tickling feeling in the hair
- Frequent itching
- Sores from scratching
Centers for Disease Control and Prevention
MEDICAL ENCYCLOPEDIA
National Institutes of Health
- The primary NIH organization for research on Head Lice is the National Institute of Allergy and Infectious Diseases
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