A member asked:

I have a perfectly half round bump approx 3/16 inch dia on my index finger knuckle. what might it be?

A doctor has provided 1 answer
Dr. Matt Wachsman answered

Specializes in Internal Medicine

Tricky: dermatologic conditions are hard to discuss without seeing them. can be anything from a nodule from arthritis, to a wart or other (minor) viral infection to really just a callous.

Answered 10/22/2015

2.1k views

Thank

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