At some point, many people glance down at their hands and notice something new: fine lines running straight up their fingernails that weren’t always there. These subtle ridges often appear more clearly with age, and while they can be surprising, they’re usually nothing to worry about. Just as hair changes texture and skin develops lines over time, nails also reflect the natural aging process. Understanding why these vertical lines form can offer reassurance—and help you take better care of your nails as the years go by.
These lines, commonly called vertical or longitudinal ridges, develop as nails grow from the matrix beneath the cuticle. Nails are made of keratin, and as the body ages, the production of this protein can become less uniform. This slower, uneven growth shows up as ridges that travel from the base of the nail to the tip. Dryness can make them more noticeable, especially since aging skin and nails tend to lose moisture more easily. Frequent handwashing, exposure to cleaning products, and harsh soaps may further strip natural oils, accentuating these lines.
Continued on next page:
