Topic summary
Plantar warts
Extracted from the Wikipedia article Plantar wart.
Diagnosis
Plantar warts are often similar to calluses or corns, but can be differentiated by close observation of skin striations. Feet are covered in friction ridges, which are akin to fingerprints of the feet. Friction ridges are disrupted by plantar warts; if the lesion is not a plantar wart, the striations continue across the top layer of the skin. Plantar warts tend to be painful on application of pressure from either side of the lesion, rather than direct pressure, unlike corns (which tend to be painful on direct pressure instead).