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The term is believed to have originated on warships during the Age of sail, where it was common for sailors to sustain such an injury from the impact of a recoiling cannon. The condition in those days would have often been accompanied by other foot injuries, such as a fractured toe.
Ship Foot is commonly diagnosed by a discolouration of the toenail, usually black, blue, purple or red. The symptoms are caused by trapped blood under the toenail. Blisters and cracked skin may also occur.
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