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Have you noticed thin vertical lines running from the base to the tip of your fingernails as you’ve aged? You’re not alone. Many people begin to see these changes after 40. While often harmless, vertical nail ridges can sometimes indicate underlying health concerns.
Understanding Vertical Nail Ridges
These raised lines — known as longitudinal striations — typically run from the cuticle to the tip. They can become more noticeable with age, as nail structure and keratin production change.
Common Causes After 40
The primary cause is the natural aging process. As cell renewal slows, nail matrix cells produce keratin unevenly, creating ridges. Dehydration also plays a role, since aging nails lose moisture and become more brittle. Nutritional deficiencies in biotin, iron, zinc, or magnesium can further weaken nails. In some cases, health conditions like thyroid issues, poor circulation, or arthritis may contribute.
When to Seek Help
Consult a doctor if ridges appear alongside nail discoloration, thickening, pain, or swelling.
Nail Care Tips
Moisturize regularly, stay hydrated, eat a nutrient-rich diet, use gentle nail tools, and consider biotin supplements (with medical advice).
