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Related Concept Videos

Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Leishmaniasis01:30

Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Accessory Structures of the Skin: Sebaceous Glands01:21

Accessory Structures of the Skin: Sebaceous Glands

A sebaceous gland is a type of oil gland found almost all over the skin ( except palms and soles) and helps lubricate and waterproof the skin and hair. Most sebaceous glands are associated with hair follicles. They generate and excrete sebum, a mixture of lipids, onto the skin surface, thereby naturally lubricating the dry and dead layer of keratinized cells of the stratum corneum, keeping it pliable.
These glands that produce the oils on the skin and hair are holocrine glands. The mature...
Accessory Structures of the Skin: Hair Growth and Types01:20

Accessory Structures of the Skin: Hair Growth and Types

Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...
Acne Infection01:27

Acne Infection

Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...
Toxoplasmosis01:28

Toxoplasmosis

Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...

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Related Experiment Video

Updated: Jul 10, 2026

A Versatile Model of Hard Tick Infestation on Laboratory Rabbits
05:38

A Versatile Model of Hard Tick Infestation on Laboratory Rabbits

Published on: October 6, 2018

[Pediculosis].

Christian Chuard1

  • 1Clinique de médecine et Unité de prévention et contrôle de l'infection, Hôpital fribourgeois, 1708 Fribourg. chuardc@h-fr.ch

Revue Medicale Suisse
|November 8, 2007
PubMed
Summary
This summary is machine-generated.

Head pediculosis, a common childhood ailment, is often asymptomatic, making diagnosis challenging. Topical treatments like permethrin are generally effective, though resistance is emerging.

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Area of Science:

  • Dermatology
  • Parasitology
  • Public Health

Context:

  • Head pediculosis is a common, benign condition, especially in children.
  • Diagnosis can be difficult due to asymptomatic presentation, leading to potential overdiagnosis and unnecessary treatments.
  • Body pediculosis is associated with poor sanitation, while pubic lice (Phthirus pubis) are sexually transmitted.

Purpose:

  • To provide an overview of head pediculosis (head lice), body lice, and pubic lice.
  • To discuss diagnostic challenges and therapeutic approaches for different types of pediculosis.
  • To highlight the importance of appropriate management and public health considerations.

Summary:

  • Head pediculosis is common in children, often asymptomatic, and diagnosis requires careful evaluation to avoid overdiagnosis.
  • Topical pediculicides, such as permethrin and malathion, are generally effective for head lice, but resistance is a growing concern.
  • Body pediculosis management focuses on hygiene, while pubic lice are treated with topical pediculicides.

Impact:

  • Improved understanding of pediculosis diagnosis and management can reduce unnecessary treatments.
  • Awareness of treatment resistance is crucial for effective public health strategies.
  • Effective management of pediculosis contributes to overall public health and well-being.