Before you worry too much: Most white streaks on nails are harmless. However, if you have similar lines on many nails, or a pair of lines that runs all the way across the nail, it could be a sign that ...

Melanonychia, a black line on your nail, can be a sign of melanoma or benign pigmentation changes. Injuries, medications, and ...

(NEXSTAR) – What started out as a “tiny little brown line” on one woman’s fingernail led to a rare, potentially life-threatening medical condition, one that she’s now trying to help others catch early ...

Broken and brittle nails are not uncommon, but if you’re seeing white spots on your nails, also known as leukonychia, it’s understandable to be concerned. “Leukonychia is a condition where people get ...

If you've suddenly noticed vertical or horizontal ridges on your nails, it's natural to wonder why. We asked experts to explain the most common causes of fingernail ridges and what you can do about ...