determine whether further testing is necessary.
The Bottom Line
Your fingernails can sometimes provide useful clues about what’s happening in your body, but they are not a diagnostic test.
For people over 40, ordinary vertical ridges are often simply part of getting older. At the same time, sudden or unusual changes in nail shape, color, or texture can sometimes deserve closer attention.
So the next time you notice a new line on your nail, don’t panic. Take a closer look, consider whether it is changing, and remember that the best
