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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...
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A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...
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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
06:41

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Published on: March 9, 2015

Adolescent hair loss.

Laleh A Bedocs1, Anna L Bruckner

  • 1Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305-5168, USA.

Current Opinion in Pediatrics
|July 16, 2008
PubMed
Summary

Adolescent hair loss, including telogen effluvium, androgenetic alopecia, and alopecia areata, requires physician awareness. Management involves understanding treatments and psychosocial support for affected teens.

Area of Science:

  • Dermatology
  • Pediatric Endocrinology
  • Psychology

Background:

  • Hair loss (alopecia) can be a primary skin condition or secondary to systemic illness.
  • Alopecia significantly impacts adolescents during critical developmental stages, affecting their emotional and psychological well-being.
  • Understanding the prevalence and impact of alopecia in adolescents is crucial for healthcare providers.

Purpose of the Study:

  • To review the common types of alopecia observed in adolescents.
  • To discuss the clinical presentation and management of these conditions.
  • To emphasize the importance of psychosocial support in adolescent hair loss care.

Main Methods:

  • Literature review of common alopecia types in adolescence.
  • Analysis of triggers, clinical manifestations, and treatment options.

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  • Evaluation of the psychosocial impact and supportive care strategies.

    • Main Results:

    • Common adolescent alopecia types include telogen effluvium, androgenetic alopecia, and alopecia areata.
    • Topical minoxidil can slow hair loss in androgenetic alopecia; underlying conditions like polycystic ovary syndrome should be considered.
    • Alopecia areata, though less common, can be particularly distressing, especially with extensive hair loss.

    Conclusions:

    • Physicians must be adept at diagnosing common adolescent alopecia types.
    • Awareness of current and emerging treatments is essential.
    • Integrating psychosocial support and non-pharmacologic coping strategies is vital for comprehensive care.