nits; they are usually larger than males. Adult lice can live up to 30 days on a
person's head. To live, adult lice need to feed on blood. If the louse falls off a
person, it dies within 2 days.
Where are head lice most commonly
found?
On the scalp behind the ears and near the neckline at the back of
the neck. Head lice hold on to hair with hook-like claws found at the end of
each of their six legs. Head lice are rarely found onthe body, eyelashes, or
eyebrows.
What are the signs and symptoms of head lice infestation?
Tickling feeling of something moving in the hair. itching, caused by the an
allergic reaction to the bites. Irritability. Sores on the head caused by
scratching. These sores can sometimes become infected.
How did my child
get head lice?
By contact with an already infested person. Contact is
common during play at school and at home (slumber parties, sports
activities, at camp, on a playground). By wearing infested clothing, such as
hats, scarves, coats, sports uniforms, or hair ribbons. By using infested
combs, brushes, or towels. By lying on a bed, couch, pillow, carpet, or stuffed
animal that has recently been in contact with an infested person.
How is
head lice infestation diagnosed?
By looking closely through the hair and
scalp for nits, nymphs, or adults. Finding a nymph or adult may be difficult;
there are usually few of them and they can move quickly from searching

fingers. If crawling lice are not seen, finding nits within a 1/4 inch of the scalp
confirms that a person is infested and should be treated. If you only find nits
more than 1/4 inch from the scalp, the infestation is probably an old one and
does not need to be treated.

You've reached the end of your free preview.
Want to read all 21 pages?
- Summer '14
- Head louse, Facial hair, Pediculosis, Body louse, Crab louse, Louse