Head lice


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Head lice
Head lice
Head louse, male
Head louse, male
Head louse emerging from egg
Head louse emerging from egg
Head louse - female
Head louse - female
Head louse infestation - scalp
Head louse infestation - scalp
Lice, head - nits in the hair with close-up
Lice, head - nits in the hair with close-up
Nit on human hair
Nit on human hair
Alternative Names

Lice - head; Nits; Pediculosis capitis - head lice


Symptoms
  • Intense itching of the scalp
  • Small, red bumps on the scalp, neck, and shoulders
  • Bumps may become crusty and ooze
  • Tiny white specks (eggs, or nits) on the bottom of each hair that are hard to get off

Lice on scalp and clothing may be difficult to see, unless the infestation is heavy. If you see something moving, it's called a louse.


Signs and tests

To see head lice, you need to look closely. Use disposable gloves and look at the person's head under a bright lead. Full sun or the brightest lights in your home during daylight hours work well. A magnifying glass can also help.

Part the hair all the way down to the scalp in very small sections, looking both for moving lice and eggs (nits). Look at the entire head this way. Look closely around the top of the neck and ears, the most common locations for eggs.

Treatment is recommended if even one egg is found.



Review Date: 03/17/2006
Reviewed By: John Goldenring, MD, MPH, Department of Pediatrics, Children's Hospital, San Diego, CA. Review provided by VeriMed Healthcare Network.


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