Flat Warts ICD-10: B07.8

Causes, Symptoms, and When to Take Action Flat warts are benign, smooth, small bumps on the skin. They are flatter and smaller than other wart types, often appearing in groups, especially in children and teens. How It Looks Texture: Smooth surface, very slightly raised or almost flush with skin Color: Skin-colored, yellowish-brown, pink, or slightly brown depending on skin tone Shape: Round or oval; many in one area (clusters of dozens to around a hundred) Location: Common on face, back of hands, neck, legs; may spread after shaving in beard area or other shaved skin Why Does It Appear? Caused by infection with specific strains of human papillomavirus (HPV) Virus enters through small breaks, cuts, or abrasions Warm, moist skin and skin trauma (e.g., shaving or scratches) may increase risk Weakened immune response or hygiene factors may also contribute Should You Be Concerned? Flat warts are not dangerous and often disappear on their own, though it may take many months or years. Concern is justified if: Warts spread extensively They are persistent and do not improve They cause cosmetic distress or affect quality of life They become irritated or show changes in appearance Can You Prevent It? Avoid scratching, shaving over warts, or skin trauma that might spread virus Wash hands and skin after touching warts Avoid sharing personal items that contact skin (e.g. towels) Keep skin clean and dry 👉 How Piel AI Can Help Piel AI allows you to track flat wart appearance over time via regular images. While not diagnostic, it helps you notice changes in number, clustering, or spread, and aids discussions with healthcare providers. Summary Flat warts are small, benign skin bumps caused by HPV, often appearing in clusters. They are smooth, slightly raised, and vary in color according to skin tone. Usually harmless and self-resolving, but can persist for long periods. Preventive hygiene, avoiding skin trauma, and monitoring are helpful.