- Nutrient Deficiencies: Low levels of biotin, iron, zinc, or magnesium can affect nail health.
- Health Conditions: In rare cases, ridges can signal issues like poor circulation, thyroid problems, or arthritis.
When to See a Doctor
Seek medical advice if you notice:
- Black or dark brown streaks
- Pain, swelling, or redness
- Nail thickening, peeling, or splitting
These could point to infection or, in rare cases, skin cancer under the nail.
How to Care for Aging Nails
- Moisturize regularly with nail oils or hand creams.
- Stay hydrated to keep nails flexible.
- Eat a nutrient-rich diet with biotin, zinc, and iron.
- Be gentle—avoid over-filing and harsh nail products.
- Use gloves when cleaning or gardening to protect your nails.
Vertical ridges are usually harmless and part of aging—but they can also reflect changes in your overall health. If you’re unsure, ask your doctor.