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Related Concept Videos

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...
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Signs of Puberty

Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
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Influence of Parents and Peers on Identity

Adolescence is a pivotal period of identity formation, during which individuals begin to answer questions central to their sense of self, such as "Who am I?" and "Who do I hope to become?" Both parents and peers play critical roles in guiding adolescents through this complex developmental phase.
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Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth. This guiding role...
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Cognitive Development During Adolescence

During adolescence, individuals experience significant cognitive development that enhances their understanding of others' emotions and thoughts, known as cognitive empathy. This period is marked by an increased ability to adapt to others' perspectives and a more nuanced understanding of others' mental states, a skill that is foundational for social problem-solving and conflict avoidance. The development of cognitive empathy relies heavily on the theory of mind — the recognition that people have...
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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.
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Related Experiment Video

Updated: Jul 5, 2026

A Rat Model of Compound Acne
03:10

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Published on: November 1, 2024

Post-adolescent acne.

H E Knaggs1, E J Wood, R L Rizer

  • 1Unilever Research, Edgewater, NJ 07087, USA. helen.knaggs@unilever.com

International Journal of Cosmetic Science
|May 23, 2008
PubMed
Summary
This summary is machine-generated.

Adult acne is increasingly common, affecting more women and lasting longer. Causes may involve hormones, stress, and bacteria, with persistent and late-onset forms recognized.

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Area of Science:

  • Dermatology
  • Epidemiology
  • Endocrinology

Background:

  • Acne vulgaris traditionally affects adolescents.
  • A growing body of evidence indicates a significant rise in adult (post-adolescent) acne.
  • This condition is increasingly prevalent and persistent into middle age.

Purpose of the Study:

  • To review current literature on post-adolescent acne.
  • To discuss potential etiologies and therapeutic strategies.
  • To highlight epidemiological trends and disease characteristics.

Main Methods:

  • Literature review of selected publications on post-adolescent acne.
  • Analysis of epidemiological data regarding prevalence and duration.
  • Discussion of proposed causative factors and treatment responses.

Main Results:

  • Post-adolescent acne predominantly affects females, often presenting with perioral lesions and premenstrual exacerbation.
  • Two forms are recognized: 'persistent' (continuing from adolescence) and 'late onset' (developing after age 25).
  • Potential contributing factors include hormonal fluctuations (androgens), resistant bacterial colonization, cosmetic use, and increased stress levels.

Conclusions:

  • Post-adolescent acne represents a distinct clinical entity with increasing incidence.
  • Hormonal influences, particularly androgens, and stress appear significant, especially in women in demanding careers.
  • Further research is needed to fully elucidate the multifactorial causes and optimize treatment approaches.