Lice

Lice Lessons

What are head lice?

Head lice are tiny, wingless insects that live close to the human scalp.  They feed on blood.  The eggs, also called nits, are tiny, tear-drop shaped eggs that attach to the hair shaft.  Nits often appear yellowish or white, and can look like dandruff but cannot be removed or brushed off.  They nymph, or babay louse, is smaller and grow to adult size in one to two weeks.  The adult louse is the size of a sesame seed and appears grayish-white.  An itchy and inflamed scalp is a common symptom of lice.  Although not common, persistent scratching may lead to skin irritation and even infection.

Who is affected by head lice?

Head lice are not related to cleanliness.  In fact, head lice often infest people with good hygiene and grooming habits. Infestations can occur at school or in the community.  Head lice are mostly spread by direct head-to-head contact – for example, during play at home or school, slumber parties, sports activities or camp.  Less often, lice are spread via objects that have been in recent contact with a person with head lice, such as hats, combs or bedding.

What to do if an infestation occurs?

If you think your child has head lice, it is important to talk to a healthcare provider to discuss the best treatment approach for your family

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