The presence of bloodstains certifies that a wounded human body has been enveloped in the Shroud of Turin and that most parts of this corpse came in direct contact with the cloth during the burial procedure. On the contrary, the ventral body image, by correlation between image intensity and cloth-body distance, shows codified information regarding the distance from which the cloth was versus the body at the time of the image formation. At first sight, this last statement seems to be impossible for a human corpse. Therefore, the coexistence of the bloodstains and the body imprints on both sides of the Shroud could be seen as unnatural, especially when we consider that a deterministic process as the UV radiation or the action of an electrostatic field (corona discharge), as well as manmade chemical and thermal treatment. These processes do not explain all the known characteristics of the body images (ventral and dorsal) because they do not distinguish the fibrils that must be yellowed from the ones that must retain the background colour. In this paper we prove that a natural stochastic process can offer a rational and scientific explanation that can account for all the known properties of these bloodstains and body images. However, another possible explanation that must be taken into account is a natural process involving the production of oxygen that yields a latent image.