What Causes Those Black Lines on Nails? Experts Explain
Splinter hemorrhage (nail trauma ... and appears in one or more places under your nail. "The good news is that these are ...
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What Causes a Black Line on the Nail?
Trauma: A splinter hemorrhage can occur when the nail experiences ... Melanoma can present with a bump under the nail and other nail changes. Endocarditis may bring fever, muscle aches, and ...