Source: Verywell Health
Trench foot is an injury that occurs when feet are exposed to cold and wet conditions. It is one of three types of immersion foot.When your feet are cold and damp for long periods of time, the body constricts blood flow to prevent heat loss. This results in a lack of oxygen supply to the feet and damage to tissue. Symptoms of trench foot include numbness, pain, redness, and swelling
