The key to whether you should get any changes to your fingernails checked out is whether it appears on all your fingernails or just one. Usually longitudinal ridging appears on all fingers, but, says ...

Fingernail ridges are visible lines or grooves on the nail’s surface. They can run vertically from the cuticle to the tip of ...

Also, the cuticular seal of the nails should be intact, and the nail plate should adhere to the nail bed, says Dr. Thomas ...