In a marathon, several percent of runners may be affected. Wearing footwear which fits helps prevent runners toe.If the shoe is too loose on the midfoot, the foot can slide forwards in the shoe, especially when going downhill. This may jam the toes into the end of the toebox. If the foot is sliding forwards because the shoe is too loose around the midfoot, it may be restrained by lacing the shoe carefully, or placing bulky padding between the tongue and the lacing, or by wrapping a strap in a figure-eight around the foot and ankle (image). : 86–87, 128, 142  Excessively tight or uneven fit around the midfoot may, however, cause tendon problems. : 125 Separately, if there is not enough space around the toes, the toes will also hit the toebox repeatedly. Feet become longer and wider when weight is put on them, because the arches flatten, and the toes also splay and bend. : p15, 18, 72–73  At the end of a long journey on foot, the arches flatten, the metatarsals spread, and the foot swells more than after a short one. : 52  The toes also need vertical space; a toe cap which is low enough to press on the top of the toe may also cause bruising under the nail, especially if the toe cap is stiff. If the toebox is pointed, the toes may be wedged forwards into the area with inadequate height. : 52–53, 135 Toenails which protrude unevenly may concentrate force on the toenail; properly-cut nails are therefore also important.Some susceptible runners may also have Mortons toe.
For trephination, the block is often more painful than the procedure. Complication rates from both forms of treatment are low, and the nail generally recovers to a normal appearance. See also
List of cutaneous conditions
Turf toe

References


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