What is Green Nail Syndrome?
Green Nail Syndrome is a condition typically caused by a bacterial infection — most commonly Pseudomonas aeruginosa — resulting in a greenish discoloration of the nail. It often affects fingernails or toenails that are frequently exposed to moisture or trauma.
Overview: Green Nail Syndrome
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Cause: Pseudomonas aeruginosa bacteria
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Color: Green to green-black discoloration of the nail
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Symptoms:
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Greenish nail color
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Nail may lift or detach from the nail bed (onycholysis)
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Sometimes slight pain or odor
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Risk Factors:
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Prolonged moisture (e.g., dishwashing, sweaty feet)
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Nail trauma or tight footwear
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Artificial nails or poor salon hygiene
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Immunosuppression
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Nail Care Tips
- Carefully trim the nail to reduce lifting and space where bacteria can thrive.
- Avoid nail polish or artificial nails as these can trap moisture and worsen the infection.
- Limit prolonged exposure to water.
- Use moisture-wicking socks and breathable shoes (for toenails).
When to See a Podiatrist
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The discoloration worsens or spreads
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The nail becomes painful or emits a foul odor
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There is redness or swelling around the nail
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Home treatments haven’t improved it within 1–2 weeks
We are independent prescribers able to prescribe any medication from the BNF relevant to the lower limb, foot and ankle.
Are you suffering from any hand or foot condition? At The Chelsea Clinic, we can help. One of our podiatrists can assist and then recommend what treatments are best to get you back on track. Podiatrist South Kensington
Schedule an appointment here or you may call us at +44 (0) 207 101 4000.
We hope you have a feetastic day!
-The Chelsea Clinic and Team
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