What’s that dark spot under the nail? Fungus? Infection? Something worse? What it actually is: Most often, it’s a subungual hematoma — basically trapped blood under the nail plate, usually from trauma or pressure (like hitting the nail or tight shoes). Key signs: Dark red, purple, brown or black spot Usually painless or only slightly tender Doesn’t move with nail growth at first, then slowly grows out with the nail Important: ⚠️ It must be distinguished from melanoma (a rare nail cancer), which

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