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Acne vulgaris

Acne is an inflammatory disorder of the hair follicle and sebaceous gland, most often involving the face, chest and back. It can occur beyond adolescence.

At a glance

Quick facts

Category
Skin disorders
What it is
Acne is an inflammatory disorder of the hair follicle and sebaceous gland, most often involving the face, chest and back.
Typical presentation
Blackheads, whiteheads, inflamed papules, pustules and sometimes deep painful nodules are characteristic.
Assessment
Examination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors.
Treatment approach
Topical retinoids, benzoyl peroxide and other treatments are tailored to severity.
Key safety concern
Rapidly worsening painful nodules, significant scarring or severe psychosocial distress deserves timely assessment.

Names & terminology

Understanding the name

Acne is an inflammatory disorder of the hair follicle and sebaceous gland, most often involving the face, chest and back. It can occur beyond adolescence.

Clinical reference

Clinical profile

Summary
CategorySkin disorders
What it isAcne is an inflammatory disorder of the hair follicle and sebaceous gland, most often involving the face, chest and back.
Typical presentationBlackheads, whiteheads, inflamed papules, pustules and sometimes deep painful nodules are characteristic.
AssessmentExamination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors.
Treatment approachTopical retinoids, benzoyl peroxide and other treatments are tailored to severity.
Key safety concernRapidly worsening painful nodules, significant scarring or severe psychosocial distress deserves timely assessment.

Overview

Acne is an inflammatory disorder of the hair follicle and sebaceous gland, most often involving the face, chest and back. It can occur beyond adolescence.

Symptoms and presentation

Blackheads, whiteheads, inflamed papules, pustules and sometimes deep painful nodules are characteristic.

CLINICAL FEATURES

Presentation and warning signs

The pattern varies and cannot replace an individual assessment.

Clinical overview
Presentation
  • Blackheads
  • whiteheads
  • inflamed papules
  • pustules and sometimes deep painful nodules are characteristic
Clinical assessment
  • Examination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors
  • Interpret results with history and examination
When to seek urgent care
  • Rapidly worsening painful nodules, significant scarring or severe psychosocial distress deserves timely assessment.

Emergency symptoms and clinical severity should be assessed locally.

Clinical assessment and diagnosis

Examination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors.

ASSESSMENT

How the clinical assessment proceeds

Exact investigations depend on the clinical context.

Clinical workflow
1Define the symptom patternBlackheads, whiteheads, inflamed papules, pustules and sometimes deep painful nodules are characteristic.
2Assess disease or alternative causesExamination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors.
3Discuss care and monitoringTopical retinoids, benzoyl peroxide and other treatments are tailored to severity. Oral medication may be appropriate for extensive or scarring acne.

Treatment and management

Topical retinoids, benzoyl peroxide and other treatments are tailored to severity. Oral medication may be appropriate for extensive or scarring acne.

Treatment & care hub

Elements of care

Individual treatment is based on diagnosis, comorbidities and clinician assessment.

Management overview
Confirm diagnosisFirst step

Understand the underlying condition

Examination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors.

Tailor treatmentIndividualized

Choose evidence-based management

Topical retinoids, benzoyl peroxide and other treatments are tailored to severity. Oral medication may be appropriate for extensive or scarring acne.

Monitor safetyImportant

Recognize warning signs

Rapidly worsening painful nodules, significant scarring or severe psychosocial distress deserves timely assessment.

Diagnosis→Tailored care→Monitoring

Complications and when to seek help

Rapidly worsening painful nodules, significant scarring or severe psychosocial distress deserves timely assessment.

EVIDENCE AND DATA

Interpreting population statistics

Comparable, disease-specific prevalence or incidence data have not yet been curated for this entry. No prevalence estimate is supplied.

MedlinePlus Health Topics ↗
Data availabilityNot quantifiedUse condition-specific epidemiology, not estimated figures
No unsupported regional or country comparison is presented.

Frequently asked questions

What is Acne vulgaris?

Acne is an inflammatory disorder of the hair follicle and sebaceous gland, most often involving the face, chest and back. It can occur beyond adolescence.

How is it assessed?

Examination generally establishes the diagnosis; clinicians assess severity, scarring risk and possible hormonal factors.

When should I seek urgent help?

Rapidly worsening painful nodules, significant scarring or severe psychosocial distress deserves timely assessment.

Sources

  1. MedlinePlus, US National Library of Medicine — Acne vulgaris — health topic ↗

This is an editorial evidence summary awaiting independent clinician review. It is not a diagnosis, a treatment plan, or a substitute for personalized medical care.