Pediatric Acne: Clinical Patterns and Pearls.

Acne vulgaris presenting from birth to preadolescence can be confusing to diagnose and even more challenging to evaluate and manage. The differential diagnosis of acne varies by age and, in some cases (especially when it presents in midchildhood), deserves a thorough evaluation to rule out underlying systemic abnormalities. Acne management strategies, including factors affecting adherence to the treatment regimen, may be influenced by the patient's age. This article presents an overview of the clinical presentations of acne by age and our approach to evaluation and management of this common condition.