Head Lice Infestation causes: Difference between revisions
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==Overview== | |||
Pediculus humanus capitis, the head louse, is an insect of the order Anoplura and is an ectoparasite whose only host are humans. The louse feeds on blood several times daily and resides close to the scalp to maintain its body temperature. | |||
==Cause== | |||
Head lice infect hair on the head. Tiny eggs on the hair look like flakes of dandruff. However, instead of flaking off the scalp, they stay put. Head lice can live up to 30 days on a human. Their eggs can live for more than 2 weeks. Head lice spread easily, particularly among school children. Head lice are more common in close, overcrowded living conditions. | |||
===Causative agent=== | |||
Pediculus humanus capitis is 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 on the body, eyelashes, or eyebrows. | |||
==References== | ==References== | ||
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[[Category:Disease]] | |||
[[Category:Infectious disease]] | [[Category:Infectious disease]] | ||
[[Category: | [[Category:Primary care]] | ||
Revision as of 14:47, 10 August 2015
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Pediculus humanus capitis, the head louse, is an insect of the order Anoplura and is an ectoparasite whose only host are humans. The louse feeds on blood several times daily and resides close to the scalp to maintain its body temperature.
Cause
Head lice infect hair on the head. Tiny eggs on the hair look like flakes of dandruff. However, instead of flaking off the scalp, they stay put. Head lice can live up to 30 days on a human. Their eggs can live for more than 2 weeks. Head lice spread easily, particularly among school children. Head lice are more common in close, overcrowded living conditions.
Causative agent
Pediculus humanus capitis is 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 on the body, eyelashes, or eyebrows.