Why Do I Have a Bump on the Top of My Foot? An injury, corns, callouses, cysts, or other health conditions can cause a bump on your foot. They can be painful and make walking difficult, but there are ...
DEAR DR. ROACH: I have a marble-sized ganglion cyst on the top/side of my foot, right in front of my ankle bone. It’s not painful in and of itself, but if I put pressure on it, like sitting on the ...