color, texture, or shape may be completely harmless, or they may indicate something that deserves a closer look. Understanding the difference is important.
Common Types of Nail Ridges
When people ask about unusual-looking nails, they are often referring to ridges. These are lines or grooves that run either vertically or horizontally across the nail.
Vertical Ridges
Vertical ridges run from the cuticle, at the base of the nail, toward the tip. They are extremely common and are usually harmless.
In many cases, vertical ridges develop naturally with age. As nail
