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Head Lice

Head Lice

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Adult head lice are approximately the size of a sesame seed [2.5 mm (0.1 in.) to 3.5 mm (0.14 in.)] and can vary in color from white to brown to dark gray.

Louse eggs (nits) are much smaller [1 mm (0.03 in.)] and look like light gray or brown oval cylinders glued to individual hair shafts.

Head lice spread easily from one person to another through close bodily contact or through shared clothing or personal items such as hats or hair brushes.

Credits

ByHealthwise Staff

Primary Medical ReviewerJohn Pope, MD - Pediatrics

Specialist Medical ReviewerSusan C. Kim, MD - Pediatrics

Current as ofSeptember 9, 2014

WebMD Medical Reference from Healthwise
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