What Your Fingernails Reveal About Your Overall Health
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3.Dark Lines Beneath the Nail
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Dark lines under nails can result from trauma, but unexplained streaks might signal skin cancer. Known as melanonychia, these lines are concerning if they appear on a single nail or change over time. Subungual melanoma is a serious concern, and early detection is crucial. Any new or widening dark line should be evaluated by a doctor promptly.
