As mentioned, vertical ridges are often just a sign of aging . Over time, your nails may also become more brittle or discolored.
2. Nutritional Deficiencies
Certain vitamin and mineral deficiencies can affect the health of your nails, including:
- Biotin (B7)
- Iron
- Vitamin A
- Zinc
- Calcium
If your diet lacks these essential nutrients, you may notice changes in your nails, including ridges, brittleness, or peeling.
3. Dehydration or Dryness
Dry nails are more prone to ridges and splitting. Regular use of hand sanitizers, nail polish remover, or dish soap can strip natural oils and lead to nail damage.
4. Medical Conditions
In some cases, nail ridges can be linked to underlying health issues , such as:
- Thyroid disease
- Psoriasis
- Eczema
- Lichen planus
- Diabetes
- Iron-deficiency anemia
These conditions may also cause other nail changes, like pitting, discoloration, or thickening .
5. Trauma or Injury
Repeated minor trauma — such as typing, cleaning, or using tools — can cause ridges or dents in the nails over time.
What About Horizontal Ridges? (Beau’s Lines)
While vertical ridges are usually harmless, horizontal ridges — known as Beau’s lines — can be a sign of something more serious.
Beau’s lines appear as deep grooves across the nail and may occur after:
- Severe illness
- High fever
- Chemotherapy
- Diabetes complications
- Zinc deficiency
- Trauma to the nail bed
If you notice sudden, deep horizontal lines , especially if they appear on multiple nails, it’s worth checking in with your doctor .
How to Improve Nail Health and Reduce Ridges
Even if your ridges are age-related, there are things you can do to improve the appearance and strength of your nails :
🥗 1. Eat a Balanced Diet
Make sure you’re getting enough:
- Protein
- B vitamins
- Iron
- Omega-3 fatty acids
- Zinc
Foods like eggs, nuts, leafy greens, and fish can support nail health.
💧 2. Stay Hydrated and Moisturize
Drink plenty of water and use a nail and cuticle oil or hand cream regularly to keep nails from drying out.
🧼 3. Protect Your Hands
Wear gloves when doing dishes or cleaning to avoid harsh chemicals that can weaken nails.
💊 4. Consider Supplements
Talk to your doctor about supplements like biotin, collagen, or multivitamins if you suspect a deficiency.
🩺 5. Rule Out Underlying Conditions
If you notice other nail changes , fatigue, weight changes, or skin issues, see your doctor to rule out thyroid problems, diabetes, or autoimmune conditions.
Frequently Asked Questions
❓ Are vertical nail ridges normal?
Yes, they are usually a normal part of aging and not a cause for concern.
❓ Can nail ridges be a sign of cancer?
In rare cases, nail changes can be linked to skin cancer (like melanoma) or other cancers — especially if there’s a dark streak or pigment change . Always consult a doctor if you notice unusual changes.
❓ What vitamin deficiency causes nail ridges?
Deficiencies in biotin, iron, zinc, or B vitamins can contribute to nail ridges and brittleness.
❓ How long do nail ridges last?
They typically remain as the nail grows out. The entire nail may take 4–6 months to fully regrow , depending on which finger.
Final Thoughts
Nail ridges are usually nothing to worry about — especially if they’re vertical and have developed gradually over time. However, they can sometimes be a subtle clue about your overall health, nutrition, or lifestyle.
If you’re concerned about the appearance of your nails or notice other unusual changes , it’s always a good idea to check in with your doctor or dermatologist .
After all, your nails can tell you a lot — if you know what to look for.