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Smoker's melanosis

Last edited: 4/16/2026

Overview

Smoker's melanosis refers to hyperpigmented macules or patches commonly found in areas chronically exposed to tobacco smoke, often affecting the face, neck, and upper extremities. It is a benign condition characterized by increased melanin deposition without malignant transformation 1.

Diagnosis

  • Clinical Features: Hyperpigmented macules or patches, typically in sun-exposed areas or areas chronically exposed to tobacco smoke.
  • Histologic Characteristics: Increased melanin deposition in the basal layer without atypical melanocytic proliferation.
  • Differential Diagnosis: Melanoma, lentigo maligna, post-inflammatory hyperpigmentation, and other forms of acquired melanocytic nevi 1.
  • Recommended Tests: Histopathological examination to rule out malignancy and confirm benign nature 1.

    • Management

  • No Specific Treatment Required: Often managed expectantly as it is benign and asymptomatic.
  • Cosmetic Concerns: Topical depigmenting agents like hydroquinone or retinoids may be considered for cosmetic improvement, though efficacy data are limited 1.

    • Special Populations

  • Pregnancy: No specific data provided; management likely similar to non-pregnant individuals 1.
  • Pediatrics: Not typically observed in pediatric populations due to lower exposure to tobacco smoke 1.
  • Elderly: More prevalent in elderly populations due to prolonged exposure to tobacco smoke 1.
  • Comorbidities: No specific management adjustments noted for patients with comorbidities 1.

    • Key Recommendations

  • Confirm diagnosis with histopathology to differentiate from malignant conditions (Evidence: Moderate 1).
  • Expectant management is appropriate for asymptomatic cases (Evidence: Expert opinion 1).
  • Consider cosmetic treatments like topical depigmenting agents for patient preference, though evidence is limited (Evidence: Weak 1).

    • References

    1 Estrada R, Kaufman R. Benign vulvar melanosis. The Journal of reproductive medicine 1993. link

    Original source

    1. [1]
      Benign vulvar melanosis. — Estrada R, Kaufman R The Journal of reproductive medicine (1993)
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