Plantar wart signs and symptoms include: 
A small, rough growth on the bottom of your foot, usually at the base of the toes or on the ball or heel
On brown and Black skin, the growth may be lighter than unaffected skin
Hard, thickened skin (callus) over a spot on the skin, where a wart has grown inward
Black pinpoints, which are small clotted blood vessels commonly called wart seeds
A cluster of growths on the sole of the foot (mosaic warts)
A growth that interrupts the normal lines and ridges in the skin of your foot
Pain or tenderness when walking or standing
