- A recent illness, infection, or surgery
- Uncontrolled diabetes
- Circulatory or heart problems
- Side effects from certain medications
- Malnutrition or vitamin deficiencies
If you spot deep horizontal ridges—especially if they appear suddenly or affect multiple nails—it’s wise to consult a doctor. They may want to examine underlying health conditions.
Other nail changes to watch for after 60
In addition to ridges, aging nails may become:
- Thicker or more brittle due to slower nail growth and decreased natural oils
- Discolored (yellowing can be common but may also suggest fungal infection)
- More prone to splitting if nails are often exposed to water or chemicals
- Some changes are just cosmetic, while others may need medical attention. For example, nails that suddenly change color, lift from the nail bed, or develop painful ridges should always be checked by a healthcare provider.
How to care for ridged nails
Even if ridges are normal, you can take steps to keep your nails healthy and strong:
- Moisturize daily – Use a nourishing hand cream or cuticle oil to prevent dryness.
- Eat a balanced diet – Protein, biotin, zinc, and iron encourage strong nails.
- Protect your nails – Wear gloves when cleaning or gardening.
- Avoid harsh nail products – Acetone-based polish removers and strong chemicals can make ridges worse.
- File carefully – Smooth the nail surface gently without over-buffing, which can thin the nail.
