Fingernail ridges manifest as colorless, raised, thin lines running vertically along the nail bed from the cuticle to the tip of the nail. The good news is that vertical ridges in your nails are typically only a cosmetic issue and are a natural part of the aging process. However, the horizontal ridges are the ones to look out for as they can be a cause for concern.
You can think of these vertical ridges as wrinkles in the nail, occurring on both fingernails and toenails. Factors such as aging, genetic predisposition, compromised circulation, and excessive exposure to chemicals and water contribute to the appearance of these ridges....
