Theoretically, a Spitz Nevus does not removing because it is a benign grown (like other moles). However, it is often difficult for a clinician to be certain that the condition is a Spitz Nevus. What’s more, these Nevi are not always easily distinguished from melanoma even by expert dermatopathologists. There is evidence that a low grade of melanoma overlaps with a Spitz Nevus.
For these reasons, the decision for surgical excision of a Spitz will depend on a combined decision betwen the patient (most often the parent) and the treating Doctor.