Atypical/Dysplastic Nevus

Atypical/Dysplastic Mole

Overview

Atypical nevi (dysplastic nevi or Clark's nevi) are moles that have irregular features under the microscope and clinically, but are not cancerous. They tend to be larger than common moles, with irregular borders and uneven color. Having multiple atypical nevi is a risk factor for melanoma, so regular monitoring is important.

Key Symptoms

  • Larger than common moles, typically greater than 6 mm
  • Irregular or poorly defined borders
  • Uneven color with mixtures of tan, brown, and pink
  • Flat or slightly raised, often with a flat component surrounding a raised center
  • May occur anywhere but common on sun-exposed areas and trunk
  • Often multiple atypical nevi are present

Affected Areas

Trunk, Back, Arms, Legs, Sun-exposed areas

Care Instructions

  1. Schedule regular full-body skin exams with a dermatologist for monitoring.
  2. Perform monthly self-skin checks using the ABCDE criteria.
  3. Photograph atypical moles to track any changes over time.
  4. Protect skin with SPF 30+ sunscreen and sun-protective clothing.
  5. A biopsy may be recommended if a mole shows concerning changes.
  6. Discuss your personal melanoma risk factors with your dermatologist.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Present in approximately 2–10% of the general population