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
- Kliegman RM, et al. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa.: Saunders Elsevier; 2011. http://www.mdconsult.com/das/book/body/208746819-6/0/1608/0.html. Accessed Feb. 26, 2013.
- Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-7234-3541-9..X0001-6--TOP&isbn=978-0-7234-3541-9&uniqId=230100505-57. Accessed Feb. 26, 2013.
- Baddour LM. Impetigo. http://www.uptodate.com/home. Accessed Feb. 26, 2013.
- AskMayoExpert. Impetigo. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2012.
- Ferri FF. Ferri's Clinical Advisor 2013:5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2012. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-08373-7..00002-9&isbn=978-0-323-08373-7&about=true&uniqId=343863096-23. Accessed Feb. 27, 2013.
- Impetigo care. American Academy of Pediatrics. http://www.healthychildren.org/English/health-issues/conditions/skin/Pages/Impetigo.aspx?nfstatus=401&nftoken=00000000-0000-0000-0000-000000000000&nfstatusdescription=ERROR%3a+No+local+token. Accessed Feb. 27, 2013.
- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. March 12, 2013.
- Wolff K, et al. Fitzpatrick's Color Atlas and Synopsis of Clinical Dermatology.6th ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=45. Accessed Feb. 28, 2013.
- Baddour LM. Patient information: Impetigo (beyond the basics). http://www.uptodate.com/home. Accessed Feb. 28, 2013.