- Nits (eggs)
- oval, usually white in color, may be mistaken for dandruff, are firmly attached to a hair shaft, close to the scalp
- take about 1 week to hatch into nymphs
- Nymph (baby louse)
- lives on scalp and feeds off human blood
- matures in 1 week into an adult louse
- if a nymph falls off a person it usually survives only one day
- Adult Louse
- size of a sesame seed, has 6 legs, and is tan to grayish-white
- females lay nits - they are usually larger than males
- can live up to 30 days on a person’s head
- feeds on human blood
- if a louse falls off a person, it may survive one to two days
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Sunday, June 19, 2011
Life cycle of head lice
Life Cycle consists of three stages:
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