Why Do Toenails Turn Black?

Answer

Toenails turn black due to runner toe, a condition that comes about when the toe is pressed down too much on the nail bed that underlies. It can also be caused by tight fitting shoes or a fungal infection.
Q&A Related to "Why Do Toenails Turn Black"
Toenails will appear black when there is blood collected under the nail. This is usually caused by an injury to the toe or the toenail area.
http://answers.ask.com/Health/Diseases/what_causes...
You've bruised or injured it in some way or it has died and needs to fall off.
http://wiki.answers.com/Q/What_is_wrong_when_toena...
1. Wear properly sized shoes. Black toenails are caused when the toe repeatedly hits the running shoe. Leave a half-inch of space between the longest toe and the end of the shoe.
http://www.ehow.com/how_2111903_prevent-black-toen...
Runners get black and purple toenails from nail bruising from bumping
http://www.chacha.com/question/why-do-runner's-toe...
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Toenails usually turn black because of some trauma. If you smash your toe or drop something on your toe, especially close to the nail bed it will turn your toenail ...
There are many reasons why nails change colour. Black decolourisation of the toenail is usually from objects being dropped on the toenail. Other causes include ...
Toenails will appear black when there is blood collected under the nail. This is usually caused by an injury to the toe or the toenail area. ...
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