Warts in Children: Treatment Strategies

Overview / Definition Warts are benign, hyperproliferative lesions of the skin caused by infection with the human papillomavirus (HPV). They can occur in various forms, including common warts, plantar warts, and flat warts, each distinguished by location and appearance. In children, warts are particularly common and can be a source of anxiety due to their visibility and potential for contagion. Epidemiology Warts are prevalent in the pediatric population, with an estimated incidence of up to 10% in children. They are more common in children aged 5 to 12 years, with a slight male predominance. Transmission typically occurs through direct contact, often in settings such as schools and playgrounds. Common in children aged 5-12 years More prevalent in boys than girls Spread through direct contact or autoinoculation Pathophysiology / Mechanism The pathogenesis of warts involves infection of the epidermal keratinocytes by HPV, leading to a localized proliferation of these cells. The virus disrupts normal keratinocyte maturation, resulting in the characteristic hyperkeratotic lesions seen in warts. Over 150 types of HPV have been identified, with types 2, 4, and 7 being the most common in children. Clinical Presentation Warts can present in various forms, including: Common warts (verrucae vulgaris): Rough, raised lesions typically found on fingers and hands. Plantar warts (verrucae plantaris): Occur on the soles of the feet, often painful due to pressure. Flat warts (verrucae plana): Smooth, flat-topped lesions commonly found on the face and extremities. Filiform warts: Finger-like projections, often seen on the face or neck. Clinical examination reveals a thickened, keratotic surface with possible pinpoint bleeding when disrupted. Warts are typically asymptomatic but can cause discomfort, particularly plantar warts. Diagnosis / Workup The diagnosis of warts is primarily clinical, based on characteristic appearance and location. A thorough history and physical examination