A member asked:

What could cause the toenail on my big toe to turn dark?

4 doctors weighed in across 2 answers

May be a fungus : The darkening toenail could be a sign of a fungus infection. It also may be an injury that caused bleeding beneath the nail. Both are treatable! visit a podiatrist to find out the cause and treatment.

Answered 11/1/2012

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Dr. Joel Wilner answered

Specializes in Podiatry

Injury/lesion: Could possibly be due to microtrauma to the nail bed or from a lesion ...Should be checked out by a podiatrist.

Answered 9/14/2015

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