What Your Nails Reveal About Your Health

RuneVoyager Updated 2025-07-02

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3. Dark Lines Beneath the Nail

Dark lines under nails can result from trauma, like pinching your finger, causing bleeding under the nail. However, unexplained dark streaks may signal skin cancer and require immediate medical attention. Known as melanonychia, these lines are concerning if they appear on one nail. While some lines are harmless, linked to medications, pregnancy, or ethnicity, any new or changing line should be checked. Subungual melanoma, a type of skin cancer, is the most serious concern. Early detection is critical, so seek evaluation for any unexplained dark line, especially one that widens or darkens.

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About the Author: RuneVoyager

Advocate for structured thinking as a competitive advantage.

Recommended Reading: 25 Hilarious Wedding Photos That Will Crack You Up

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Comments

StellarSpindle 07/10/2025

Hard to unsee now.
MosaicHarbor 06/17/2025

This reframes a lot.
SaffronVector 06/30/2025

Creates optional collaboration hooks.