Provided is a prediction device for skin change from radiation exposure, the device being capable of precisely predicting a skin reaction to radiation exposure. Also provided are a verification device, a program for the prediction device for skin change, and a program for the verification device. A prediction device (4) for skin change from radiation exposure includes: a radiation information accepting unit (11) that accepts input of radiation information regarding expected exposure to radiation a pre-exposure skin image acquiring unit (21) that acquires a skin image that captures skin of a living body a change computing unit that computes the change of the skin due to exposure to the radiation determined by the radiation information and that obtains from the skin image a post-change prediction skin image and a prediction skin image outputting unit (25) that outputs the prediction skin image. The change calculating unit includes an expression form converting unit (22), an amount-of-change deciding unit (13), an image changing unit (23), and an expression form restoring unit (24).