Horizontal Ridges: They Deserve More Attention
Horizontal ridges, also called Beau’s lines, may indicate that nail growth temporarily stopped or slowed.
Possible causes include:
- A severe illness with high fever
- Major surgery
- Significant physical stress
- Nail injury
- Certain medications
- Poor nutrition
Because nails grow slowly, these lines often appear several weeks after the event that caused them.
If multiple nails develop deep horizontal ridges without an obvious explanation, it’s worth discussing with your healthcare provider.
Other Nail Changes That May Signal a Problem
Ridges alone are often harmless, but certain additional symptoms should not be ignored.
Watch for:
- Nails becoming very brittle
- Splitting or cracking
- Thickened nails
- Yellow, green, or black discoloration
- White patches that spread
- Nail separation from the nail bed
- Pain, swelling, or redness around the nail
- A dark streak that appears without injury
These changes may result from fungal infections, inflammatory skin conditions, injury, medication effects, or other medical issues that require professional evaluation.
Could Vitamin Deficiencies Cause Nail Ridges?
Sometimes—but not always.
Certain nutrient deficiencies may contribute to nail changes, including inadequate intake of:
- Iron
- Vitamin B12
- Folate
- Zinc
- Protein
However, nail ridges alone are not enough to diagnose a vitamin deficiency. Many healthy people develop ridges simply because of aging.
If you also experience fatigue, hair loss, pale skin, or other symptoms, your healthcare provider may recommend blood tests before suggesting supplements.
How to Keep Your Nails Healthy
Healthy nail habits can reduce dryness and improve the appearance of ridges.
Moisturize Daily
Apply hand cream or cuticle oil regularly, especially after washing your hands.
Protect Your Hands
Wear gloves when using cleaning products or working in water for extended periods.
Eat a Balanced Diet
Include foods rich in:
- Lean protein
- Fruits
- Vegetables
- Whole grains
- Healthy fats
These nutrients support healthy nail growth.
Avoid Excessive Buffing
While buffing may temporarily smooth ridges, excessive buffing can thin and weaken the nail.
Don’t Pick at Cuticles
Damaging the cuticle may interfere with healthy nail growth and increase the risk of infection.
When Should You See a Doctor?
