Lice

Common Name(s)

Lice

Lice are very small, wingless insects that feed on human blood. There are three types of lice that affect humans: head lice, body lice and pubic lice. Head lice are the more common type of lice and develop on the hair and skin of the head (scalp). Body lice typically live in clothing and bedding, but move to the skin to feed. Pubic lice (crabs) live on the skin and hair in the pubic area. Lice are very easily spread through close contact. Symptoms of lice include intense itching, a tickling feeling in the hair, and small, red bumps on scalp, neck, and shoulders.

A person can get lice by coming into contact with lice or their eggs (nits). They are usually spread by close contact with individuals who have lice. Risk factors for getting lice include attending school or work with a person with lice and living in crowded and unclean conditions. Having many sex partners increases the risk for pubic lice. A diagnosis of head lice can be made when a live young or adult louse is seen on the scalp or hair or if a nit is seen on the hair within a ¼ inch from the scalp. Body lice can be diagnosed if lice or their eggs are seen in the seams of clothing or on bedding. Pubic lice can be diagnosed when moving lice or nits are seen on hair or skin of the pubic area. A person affected with lice can usually be treated with over-the-counter treatments for lice. If over-the-counter lice treatment does not work, your doctor may recommend prescription medications. If you or your child has been diagnosed with lice, talk with your doctor to discuss the best treatment recommendation.

Source: Advocacy organizations associated with the condition.

 

Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "Lice" for support, advocacy or research.

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National Pediculosis Association, Inc

The National Pediculosis Association®, Inc. (NPA) is the only non-profit health and education agency dedicated to protecting children from the misuse and abuse of potentially harmful lice and scabies pesticidal treatments. As part of its mission, the NPA works to encourage our nation's health and child care professionals to adopt standardized head lice management programs in an effort to keep the children in school lice and nit free.

Last Updated: 25 Jun 2015

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The STD Project

Established in April of 2012 during STD Awareness Month, The STD Project is a multi-award-winning independent website and progressive movement eradicating STD stigma by facilitating and encouraging awareness, education, and acceptance through story-telling and resource recommendations. We are taking steps toward modern-day sexual health and prevention by advocating for conscientious and informed decisions.

Last Updated: 11 Jul 2016

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General Support Organizations

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Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "Lice" for support, advocacy or research.

Logo
National Pediculosis Association, Inc

The National Pediculosis Association®, Inc. (NPA) is the only non-profit health and education agency dedicated to protecting children from the misuse and abuse of potentially harmful lice and scabies pesticidal treatments. As part of its mission, the NPA works to encourage our nation's health and child care professionals to adopt standardized head lice management programs in an effort to keep the children in school lice and nit free.

http://www.headlice.org/

Last Updated: 25 Jun 2015

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The STD Project

Established in April of 2012 during STD Awareness Month, The STD Project is a multi-award-winning independent website and progressive movement eradicating STD stigma by facilitating and encouraging awareness, education, and acceptance through story-telling and resource recommendations. We are taking steps toward modern-day sexual health and prevention by advocating for conscientious and informed decisions.

http://www.thestdproject.com/

Last Updated: 11 Jul 2016

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General Support Organizations

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Scientific Literature

Articles from the PubMed Database

Research articles describe the outcome of a single study. They are the published results of original research.
The terms "Lice" returned 147 free, full-text research articles on human participants. First 3 results:

"Acrobatic" Lice.
 

Author(s): Adan Fuentes-Suárez, Tita N González-Márquez

Journal: N. Engl. J. Med.. 2017 Oct;377(14):e19.

 

Last Updated: 31 Dec 1969

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Detection of bacterial pathogens including potential new species in human head lice from Mali.
 

Author(s): Nadia Amanzougaghene, Florence Fenollar, Abdoul Karim Sangaré, Mahamadou S Sissoko, Ogobara K Doumbo, Didier Raoult, Oleg Mediannikov

Journal:

 

In poor African countries, where no medical and biological facilities are available, the identification of potential emerging pathogens of concern at an early stage is challenging. Head lice, Pediculus humanus capitis, have a short life, feed only on human blood and do not transmit ...

Last Updated: 31 Dec 1969

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Primates, Lice and Bacteria: Speciation and Genome Evolution in the Symbionts of Hominid Lice.
 

Author(s): Bret M Boyd, Julie M Allen, Nam-Phuong Nguyen, Pranjal Vachaspati, Zachary S Quicksall, Tandy Warnow, Lawrence Mugisha, Kevin P Johnson, David L Reed

Journal: Mol. Biol. Evol.. 2017 Jul;34(7):1743-1757.

 

Insects with restricted diets rely on symbiotic bacteria to provide essential metabolites missing in their diet. The blood-sucking lice are obligate, host-specific parasites of mammals and are themselves host to symbiotic bacteria. In human lice, these bacterial symbionts supply the ...

Last Updated: 31 Dec 1969

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Reviews from the PubMed Database

Review articles summarize what is currently known about a disease. They discuss research previously published by others.
The terms "Lice" returned 19 free, full-text review articles on human participants. First 3 results:

Management and Treatment of Human Lice.
 

Author(s): Abdoul Karim Sangaré, Ogobara K Doumbo, Didier Raoult

Journal: Biomed Res Int. 2016 ;2016():8962685.

 

Of the three lice (head, body, and pubic louse) that infest humans, the body louse is the species involved in epidemics of louse-borne typhus, trench fever, and relapsing fever, but all the three cause pediculosis. Their infestations occur today in many countries despite great efforts ...

Last Updated: 31 Dec 1969

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A systematic literature review of pediculosis due to head lice in the Pacific Island Countries and Territories: what country specific research on head lice is needed?
 

Author(s): Rick Speare, Humpress Harrington, Deon Canyon, Peter D Massey

Journal:

 

Lack of guidelines on control of pediculosis in the Solomon Islands led to a search for relevant evidence on head lice in the Pacific Island Countries and Territories (PICTs). The aim of this search was to systematically evaluate evidence in the peer reviewed literature on pediculosis ...

Last Updated: 31 Dec 1969

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The biology and taxonomy of head and body lice--implications for louse-borne disease prevention.
 

Author(s): Denise L Bonilla, Lance A Durden, Marina E Eremeeva, Gregory A Dasch

Journal: PLoS Pathog.. 2013 ;9(11):e1003724.

 

Last Updated: 31 Dec 1969

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Symptoms, Diagnosis, and Treatment

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Clinical Trial Information This information is provided by ClinicalTrials.gov

Last Updated: 15 Sep 2017

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Clinical Endpoint Study of Ivermectin 0.5% Lotion
 

Status: Recruiting

Condition Summary: Head Lice

 

Last Updated: 22 Nov 2017

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