Acne Classification

• Mild

  • Main lesions are open and closed comedones (black and whiteheads)
  • Mostly non-inflammatory lesions
  • Papules and pustules may be present, but are small and few in number (generally <10)
  • The disease is limited to the face
  

   
• Moderate

  • Moderate numbers of papules and pustules (10-40)
  • Open and closed comedones (10-40)
  • The disease is limited to the face, but mild disease of the trunk may be present
  

   
• Moderate/Severe

  • Numerous papules and pustules (40 – 100)
  • Usually with many comedones (40 – 100)
  • Occasional larger, deeper nodular inflamed lesions (up to 5)
  • Widespread affected areas usually involving the face, chest and back
  

   
• Severe

  • Nodulocystic acne with many large, painful nodular or pustular lesions
  • Many smaller papules, pustules and comedones
  • Widespread affected areas usually involving the face, chest and back