Can screws in a pinky finger become infected.

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I had a spiral fractured pinky and they put screws in it. This was about 5-6 years ago. The screws were sensitive to touch when the surgical stiffness went away. Anyway to my question. A week ago my pinky became slightly swollen and I could not bend it much.  Its painful when I touch where the screws are. I did not hit it or bump it. It seemed like every day it got worse. At times I cant bend it at all-others I can bend half way. Sometimes I can type with no problems (I am an office worker) but other times I cant move it the SLIGHTEST bit. The doctor took x-rays and said it looks like the screws are still in place where they should be. I have not had PAIN or issues with my finger since the surgery. Could it all of a sudden become infected? What could the possible reason for this be?

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I have an appt with the Orthopedician the 21st of Nov. Will that be too late?