Drying of the skin and visible mucous membranes starts immediately after death, but visually, it begins in a few hours. The intensity of the process of drying depends on temperature and humidity of environment. At relatively high temperatures and low humidity these changes are developing quickly. Drying faster appears on the cornea and protein membranes of the eyes (in open or semi-open eyes) and becomes noticeable after 2-3 hours After the death of the cornea mateut, exposed areas of the tunica also lose transparency and becoming grayish-yellowish color. Especially clearly these changes are determined in the case when the eyes half-open. When razdvigaya well century becomes visible turbidity in the form of a triangle on the background transparent and shiny tunica, which was located under the eyelids; the base of the triangle is iris, the top are the corners of the eyes. These opacities are called "spot Large".
Drying is exposed to the border of the lips, which becomes thick, wrinkled, red-brown color, creating the impression of a lifetime sednenie, which can lead to erroneous conclusions. Thick and brown becomes the tip of the tongue, if it is from the mouth, which happens when mechanical asphyxia caused by compression of the neck loop. Phenomena drying seen in the mucosa of the small lips, if they are not closed larger sex lips. Drying is also evident in areas of the skin where the epidermis is thin and tender: Nude on the head of the penis, on the skin of the flesh, the scrotum (which becomes wrinkled, it becomes thick, brownish red color, which is especially pronounced on her front and side surfaces). This may also lead to the erroneous conclusion about the alleged lifetime injury. The so-called post-mortem "growth" of hair and nails is mainly a consequence of drying and seal skin and fingertips.
Especially intensive drying are skin and mucous membranes of newborns. The corpse of the newborn under favorable conditions, contributing to drying, can lose up to 100 g of liquid a day.
Drying quickly exposed skin areas with damaged skin that may occur when a careless transportation of the dead body with a rough movement and other mechanical effects. These areas of skin buy brownish, with a red tint, and if they are located on the lower parts of the body, "waxy" color - on the upstream. Areas drying with damaged epidermis have parchment view and therefore are called "parchment spots". On closer inspection the surface of the parchment spots you can see translucent small blood vessels, the Central parts of parchment spots are slightly below the total surface of the skin. When cross sections "parchment spots" bleeding in tissues under no.
Areas lifetime sednenie also are quickly drying up and becoming parchment density, but they have reddish-brown and slightly protrude above the skin surface. Microscopic examination of cut out areas is determined expressed in vivo response: the plethora of vessels, swelling, small and large hemorrhage, leukocytic infiltration. These changes are more pronounced in the periphery sadnenia areas, so for microscopic examination is necessary to take the pieces with areas of intact skin. When deep lifetime sadnenia in the cross sections of these areas are visible blood-soaked subject to the soft tissue.
"Parchment spots" can occur if the damage to the epidermis insects, often cockroaches and ants. The edges of these parchment spots usually have irregular scalloped shape.