A member asked:

I have had a line on my big toe for a long time today during a polish change i noticed bruising on the toe. i can't remember any trauma to the toe.

A doctor has provided 1 answer
Dr. Jerome Zacks answered

Specializes in Cardiology

Trauma or illness: Trauma, whether recalled or not, can cause a persistent black and blue area and, illness or trauma can cause a horizontal line across the affected toenail.

Answered 8/7/2016

1.1k views

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