Trench Foot

What is immersion/trench foot?

Trench Foot (or immersion foot) is caused by prolonged exposure to wet and cold temperatures. It can occur at temperatures as high as 60°F if the feet are constantly wet. Non-freezing injury occurs because wet feet lose heat 25-times faster than dry feet. To prevent heat loss, the body constricts the blood vessels to shut down circulation in the feet. The skin tissue begins to die because of a lack of oxygen and nutrients and due to the buildup of toxic products.

What are the symptoms of trench foot?

• Redness of the skin, swelling, numbness, blisters

What can be done for a person suffering from an immersion foot?

• Call 911 immediately in an emergency; otherwise seek medical assistance as soon as possible.
• Remove the shoes, or boots, and wet socks.
• Dry the feet.