The fungus invades the toenails 4 times more frequently than the fingernails, and walking becomes painful when the infection pushes up the thickened nail. Diabetics have a greater susceptibility, and a history of athlete's foot and excessive perspiration also increase one's risk. Doctors advise patients to trim their toenails straight across, but not too closely. Ingrown toenails can result from cutting the corners or sides of the nails. Avoid walking barefooted they say, and don't wear shoes that are too tapered or shallow.
Doctors suggest early treatment before the fungus becomes persistent and hard to eradicate.
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