Immersion foot syndromes

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Immersion foot
Classification and external resources
Case of trench feet suffered by unidentified soldier Cas de pieds des tranchées (soldat non identifié).jpg
Trench foot as seen on an unidentified soldier during World War I
ICD-10 T69.0
ICD-9 991.4
DiseasesDB 31219
Patient UK Immersion foot syndromes

Immersion foot syndromes include:[1]:26-7


Trench foot[edit]

Main article: Trench foot

Trench foot is a medical condition caused by prolonged exposure of the feet to damp, unsanitary, and cold conditions. The use of the word trench in the name of this condition is a reference to trench warfare, mainly associated with World War I. Affected feet may become numb, affected by erythrosis (turning red) or cyanosis (turning blue) as a result of poor vascular supply, and feet may begin to have a decaying odour due to the possibility of the early stages of necrosis setting in. As the condition worsens, feet may also begin to swell. Advanced trench foot often involves blisters and open sores, which lead to fungal infections; this is sometimes called tropical ulcer (jungle rot).

If left untreated, trench foot usually results in gangrene, which can cause the need for amputation. If trench foot is treated properly, complete recovery is normal, though it is marked by severe short-term pain when feeling returns. As with other cold-related injuries, trench foot leaves sufferers more susceptible to it in the future.[citation needed]

Tropical immersion foot[edit]

Tropical immersion foot (also known as "Paddy foot",[1] and "Paddy-field foot"[2]) is a skin condition of the feet seen after continuous immersion of the feet in water or mud of temperature above 22 degrees Celsius for two to ten days.[1]:27

Warm water immersion foot[edit]

Warm water immersion foot is a skin condition of the feet that results after exposure to warm, wet conditions for 48 hours or more, and is characterized by maceration ("pruning"), blanching, and wrinkling of the soles and sides of the feet. Blisters begin peeling away from the heels, sides and boney prominences leaving large, open, red tissue which is painful and exposed to infection. Blisters occur with prolonged dampness which can cover the entire heel or other large sections of the foot; they in turn peel away resulting in deep, tender ulcerations. Healing occurs only when the feet are cleaned, dried and exposed to air. Scarring is often permanent with extremely dry, thin skin that appears red.. The padding of the feet returns but healing can be painful as the nerves repair with some characteristics of diabetic neuropathy.

Foot immersion is a common problem with homeless individuals wearing one pair of socks and shoes for extensive periods of time and the condition is exacerbated by excessive dampness of the feet. Fungus, bacteria and other infections prosper in the warm, dark and wet conditions characterized by a sickly odor that is distinct to foot immersion. Foot gear and socks should be discarded promptly.



  1. ^ a b c d James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0. 
  2. ^ a b Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.