Nano-Pulse Stimulation (NPS) in Seborrheic Keratosis Study

Inclusion Criteria: * Willing to sign the informed consent * Has a clinical diagnosis of stable, clinically typical seborrheic keratosis * Medically determined candidate for at least 4 off-face SK lesions * Must have at least four treatable SK lesions and be willing to have NPS treatment on any three of the four treatable SK lesions. Treatable SK lesions must: be at least 1 mm in height, and no greater than 3 mm in height and not have a dimension perpendicular to the longest dimension of greater than 7.5mm or longer in any dimension than 20mm * Willing to have three of the designated SK lesions treated in a single treatment session * Willing to return to the PI's office for five additional study visits at specified intervals over 106-days * Agrees to high resolution photos of both the treated SK lesions and the untreated SK lesion * No subject identity will be possible via the "lesion-only" photograph * No evidence of active infection in the designated tissue prior to treatment * Is not allergic to Lidocaine or Lidocaine-like products * Not pregnant or lactating Exclusion Criteria: * Has an implantable electronic device (e.g., automatic defibrillator) * Active infection or history of infection within 90 previous days in designated test area * Not willing or able to sign the Informed Consent * Non-English speaking or reading * Is known to be immune-compromised * Known to be a keloid producer * On blood thinning medications * Diseases, conditions, or situations wherein the PI judges that the patient is not appropriate for participation in the study