However, sometimes there are also visible lines in the fingernails or toenails. These lines may run across the nails or ...

As people age, vertical nail ridges, known as onychorrhexis, can form due to nutritional deficiencies, anemia, digestive ...

5. Horizontal or Vertical Ridges Some people may have lines running up and down or sideways on their nail, or ridges. Ridges are typically the result of direct trauma to your nail or a more severe ...

One telltale sign of significant stress or trauma on your nails is the appearance of horizontal ridges, known as Beau’s lines. These lines form when the nail growth process is interrupted ...