Common warts on a patient
A plantar wart is a painful growth in the skin on the sole of the foot. Caused by the common wart virus, it occurs most often at points of pressure, as on the heel. There is a soft core surrounded by a firm, callus-like ring. Many tiny, black spots on the surface are bits of clotted blood in the wart. Photo credit: Mediscan
A patient has venereal warts on their tonsils. Photo credit: Dr. Harout Tanielian / Photo Researchers, Inc.
Seborrheic wart on an 81-year-old man
Actinic keratosis, also called senile keratosis, senile wart or solar keratosis, is a thickening of the skin. It happens slowly and usually affects a small spot. This problem is caused by too much time in the sun. Photo credit: Mediscan
Dermatologist treating a wart with liquid nitrogen. Photo Credit: GARO / PHANIE / Photo Researchers, Inc.