Pediatricians understand that infantile hemangiomas (IHs) are relatively common birthmarks, and most seen in a primary-care setting are small, innocuous, self-resolving and require no treatment. What is less well-appreciated by some, however, is that a significant minority of IHs are potentially problematic because of their size or location. Some cause functional impairment or other medical morbidities, but even more commonly, they can leave permanent and disfiguring scars.
