Mummification occurs in hot, dry environments. The body dehydrates and bacterial proliferation may be minimal. The skin becomes dark, dried, and leathery. The process occurs readily in the fingers and toes in dry environments, regardless of the temperature. Most mummified bodies are found in the summer months or in hot, dry climates. Hot, dry conditions with low humidity can dry out tissues, causing a dark, leathery appearance.
Fig.1 Skeletonization and mummification.
Desert climates, as well as heated indoor environments (non-humidified), can create conditions in which mummification can occur. Mummification can also occur in the winter indoors, especially if the heat is turned up, creating a hot, low-humidity environment. An entire body can mummify in only a few days to weeks in the right conditions. Once a body is in this state, it can remain preserved for many years. Notice in the image the dried-out leathery-looking skin resembling a hoodie. No further info with the image.
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