SynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferences

Information for Patients

View all Images (7)

Nonbullous impetigo in Infant/Neonate
Other Resources UpToDate PubMed

Nonbullous impetigo in Infant/Neonate

Contributors: Erin X. Wei MD, Molly Plovanich MD, Catherine J. Wang, Susan Burgin MD
Other Resources UpToDate PubMed


Impetigo is the most common skin infection seen in neonates, with impetiginous infection of atopic dermatitis being the second most common. Caused by Staphylococcus aureus or group A streptococcus (Streptococcus pyogenes), it is localized to the subcorneal portion of the epidermis. In temperate climates, S aureus causes 90%-95% of the cases and S pyogenes or combination of both S aureus and S pyogenes account for 5%-10% of cases. MRSA has been reported in 1%-10% of cases.

It has been suggested but not proven that males develop impetigo more often in the diaper area and lower abdomen, while females may have it on the face more often. Constitutional symptoms and fever are minimal.

An infrequent complication of impetigo is acute poststreptococcal glomerulonephritis (APSG), which is caused by particular serotypes of S pyogenes. The risk of APSG is not reduced when antibiotic treatment is administered. Importantly, acute rheumatic fever has not been associated with impetigo.

Although MRSA infection of the skin usually presents as recurrent furunculosis or skin abscesses, MRSA has been shown to cause impetigo. Culture and sensitivities should always be performed in patients with lesions suspicious for cutaneous infection, and empiric coverage for MRSA should be instituted if clinical suspicion is high.


L01.01 – Non-bullous impetigo

238374001 – Non-bullous impetigo

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

To perform a comparison, select diagnoses from the classic differential

Subscription Required

Best Tests

Subscription Required

Management Pearls

Subscription Required


Subscription Required


Subscription Required

Last Reviewed:02/26/2024
Last Updated:02/27/2024
Copyright © 2024 VisualDx®. All rights reserved.
Patient Information for Nonbullous impetigo in Infant/Neonate
Print E-Mail Images (7)
Contributors: Medical staff writer
Premium Feature
VisualDx Patient Handouts
Available in the Elite package
  • Improve treatment compliance
  • Reduce after-hours questions
  • Increase patient engagement and satisfaction
  • Written in clear, easy-to-understand language. No confusing jargon.
  • Available in English and Spanish
  • Print out or email directly to your patient
Copyright © 2024 VisualDx®. All rights reserved.
Nonbullous impetigo in Infant/Neonate
A medical illustration showing key findings of Nonbullous impetigo : Skin erosion, Yellow color
Clinical image of Nonbullous impetigo - imageId=277147. Click to open in gallery.  caption: 'Numerous discrete and confluent, honey-colored crusts, some hemorrhagic crusts, and surrounding erythema on and around the lips.'
Numerous discrete and confluent, honey-colored crusts, some hemorrhagic crusts, and surrounding erythema on and around the lips.
Copyright © 2024 VisualDx®. All rights reserved.