The key to whether you should get any changes to your fingernails checked out is whether it appears on all your fingernails ...

Fingernail ridges are visible lines or grooves on the nail’s surface. They can run vertically from the cuticle to the tip of the nail (known as longitudinal ridges) or horizontally across the ...

Should you worry? Longitudinal or vertical ridges which run vertically up and down in the direction of your fingernail Horizontal ridges which go across from one side of the finger to the other.