nail ridges are not a sign of a serious health problem.
Vertical ridges that develop gradually are often associated with normal aging, while horizontal grooves may sometimes reflect a temporary interruption in nail growth.
However, the appearance
of a new, changing, or unusual line—particularly a dark streak on a single nail—deserves closer attention.
Your nails cannot diagnose your health on their own, but they can sometimes provide useful clues. The best approach is to observe changes, avoid jumping to conclusions, and seek professional advice when something looks unusual or
