Learning what warts look like is the first step in identifying the type of wart present and developing effective treatment options, according to the American Academy of Dermatology. The four main types of warts include common, plantar, filiform and flat, all of which have specific visual characteristics.
Common warts are typically found on fingers and hands, while plantar warts are located on the sole of the foot. Much smoother and less pronounced than common and plantar warts are flat warts, which can develop in clusters of 20 to 100. Located mainly on the fingers or facial openings, such as the mouth, nose or eyes, filiform warts are known for rapid growth and their thread-like appearance. An individual should see a dermatologist to diagnose warts and offer specific treatment options, WebMD recommends.