7 Shocking Reasons Your Nails Turn Purple (And What to Do About It)

 

Noticed your nails turning an unusual shade of purple? While it might look alarming, this change in color can signal different health conditions—some harmless, others serious. If you’ve ever wondered, "Why are my nails purple?", this guide reveals the top causes and when to see a doctor.

For a deeper dive, check out our full article: 7 Shocking Reasons Your Nails Turn Purple

1. Poor Blood Circulation (Raynaud’s Disease)

When blood flow to your fingers decreases, nails may turn bluish-purple. This happens in Raynaud’s disease, where cold or stress triggers blood vessel spasms.

✅ What to do:

• Keep hands warm

• Avoid sudden temperature changes

• See a doctor if it happens frequently

2. Low Oxygen Levels (Cyanosis)

Purple nails can mean low oxygen in your blood—a condition called cyanosis. This may indicate:

• Lung disease (asthma, COPD)

• Heart problems

• High altitude sickness

🚨 Warning: If lips or skin also turn blue, seek emergency care.

3. Bruising Under the Nail

Injuries (like slamming your finger in a door) can cause blood pooling under the nail, turning it dark purple or black.

💡 Tip:

• Apply ice to reduce swelling

• If pain persists, see a doctor

4. Fungal or Bacterial Infections

Some nail infections change color. Fungal infections may turn nails yellow or purple, while bacterial infections can cause dark streaks.

🩺 Treatment:

• Antifungal creams

• Oral medications (for severe cases)

5. Anemia (Low Iron Levels)

Iron deficiency reduces red blood cells, leading to pale or purple nails. Other signs include fatigue and dizziness.

🍖 Fix it:

• Eat iron-rich foods (spinach, red meat)

• Take supplements if needed

6. Medication Side Effects

Certain drugs (like chemotherapy or antibiotics) can discolor nails. Always check side effects with your doctor.

💊 Solution:

• Ask about alternative medications

• Monitor changes

7. Serious Heart or Lung Conditions

In rare cases, purple nails signal heart disease, lung disorders, or blood clots.

⚠️ When to worry:

• Shortness of breath

• Chest pain

• Sudden nail color changes

Final Thoughts

Purple nails aren’t always dangerous—but they shouldn’t be ignored. If the color doesn’t fade or comes with other symptoms, see a doctor immediately.

For more details, read our full guide: Why Are My Nails Purple?

FAQs

❓ Can cold weather turn nails purple?
Yes! Poor circulation in cold temps can cause temporary discoloration.

❓ Are purple nails a sign of COVID-19?
Rarely, but low oxygen from severe COVID may cause bluish nails.

❓ How can I improve nail health?

• Eat a balanced diet

• Keep nails clean & moisturized

• Avoid harsh chemicals