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2. Red Streaks
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When you notice a red streak across your nail, chances are that you are looking at a broken blood vessel that appeared as a result of a trauma. But in other cases, dark red streaks can reveal serious conditions that definitely need a doctor’s opinion. In many situations, redness of the nails can indicate Lupus, as well as heart disease – but most patients that suffer with these serious conditions present three or more nails with red streaks, and rarely a single one. If red streaks on your nails are an often occurrence, make sure to pay a visit to your doctor.