Factors that increase the risk of impetigo include:

  • Age. Although anyone can develop impetigo, it most commonly occurs in children ages 2 to 6.
  • Crowded conditions. Impetigo spreads easily in schools and child care settings.
  • Warm, humid weather. Impetigo infections are more common in summer.
  • Certain sports. Participation in sports that involve skin-to-skin contact, such as football or wrestling, increases your risk of developing impetigo.
  • Broken skin. The bacteria that cause impetigo often enter your skin through a small skin injury, insect bite or rash.

Older adults and people with diabetes or a compromised immune system are more likely to develop ecthyma, a deeper and more serious form of impetigo.

May 15, 2013