A member asked:

What are the causes of the black part of fungal nail infection?

7 doctors weighed in across 2 answers

See below: It is just the accumulation of dirt and fungus.

Answered 1/5/2019

5.1k views

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Dr. Payam Rafat answered

Specializes in Podiatry

Many possibilities.: The black discoloration may be due to fungal debris, bacterial growth, underlying dry blood or external debris like lint from black socks or other external debris like dirt.

Answered 11/27/2017

1.8k views

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