These shifts can lead to a less smooth surface — resulting in thin, raised lines that follow the length of the nail.
📌 Most often seen in:
- Middle-aged and older adults
- People with dry skin or frequent handwashing
- Those exposed to cold weather or harsh chemicals
✅ These ridges typically affect all fingernails and worsen slightly over time — but remain harmless.
🌿 Common Causes of Vertical Nail Ridges
1. Aging (Most Common Cause)
Just like skin loses elasticity, nails lose some structural uniformity with age.
- The nail matrix (growth center under the cuticle) becomes less precise
- Keratin production slows and varies slightly across the nail bed
🔍 Think of it as “weathering” — not damage.
2. Dryness & Environmental Exposure
Frequent handwashing, sanitizer use, cleaning products, or cold air can strip moisture from nails and surrounding skin.
This leads to:
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