Green Nail Syndrome Quiz

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Yukiko Ueda, MD (Dermatology)

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Learn more about Green nail syndrome

Content updated on Nov 2, 2022

What is green nail syndrome?

This is an infection of the nails which leads to greenish discoloration. This is caused by a bacteria which thrives in wet environments.

Symptoms of green nail syndrome

  • Nails turned green

  • Change in nail color

Questions your doctor may ask to check for green nail syndrome

Your doctor may ask these questions to diagnose green nail syndrome

  • Did your nails become green?

  • Has your nail color changed?

Treatment for green nail syndrome

It is important to keep the nail dry and cut off any detached nail. Antibiotic creams and tablets may also be given to treat the infection.

View the symptoms of Green nail syndrome


  • Matsuura H, Senoo A, Saito M, Hamanaka Y. Green nail syndrome. QJM. 2017 Sep 1;110(9):609. doi: 10.1093/qjmed/hcx114. PMID: 28911027.

  • Ohn J, Yu DA, Park H, Cho S, Mun JH. Green nail syndrome: Analysis of the association with onychomycosis. J Am Acad Dermatol. 2020 Sep;83(3):940-942. doi: 10.1016/j.jaad.2020.01.040. Epub 2020 Jan 28. PMID: 32004651.

Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

From our team of 50+ doctors

Just 3 minutes.
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Shohei Harase

Shohei Harase, MD


Kameda Medical Center, Japan

Yu Shirai

Yu Shirai, MD


Yotsuya Yui Clinic, Japan

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Yoshinori Abe, MD

Internal medicine

Co-founder of Ubie, Inc.

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Rohini R, MD

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