Striped Nails: What Those Ridges and Lines Could Be Telling You About Your Health

Your fingernails and toenails do more than complete your look—they can offer useful clues about your overall health. If you’ve noticed striped nails, ridges, or unusual lines, it’s easy to dismiss them as a cosmetic issue. But in some cases, nail changes can point to nutrient deficiencies, thyroid problems, or other medical concerns worth checking out.

The good news: many nail stripes are harmless. The key is knowing which patterns are common and which ones deserve medical attention.

Types of Nail Stripes (and What They May Mean)

1) Vertical Ridges: Often Normal, Sometimes a Nutrition or Hydration Issue

Vertical ridges run from the cuticle to the tip of the nail. For many people, they become more noticeable with age as nail growth naturally slows and the nail surface becomes less even.

They can also be linked to: