Sudden onset : painful and swollen index finger on left hand.

For the past week or so, I have felt my index finger on my left hand feel increasingly painful. I am 22 years old and afraid it could be arthritis related. The finger is painful to bend and feels like an elastic band is being strained on the inside. It is especially bad when I wake up in the mornings. All the other fingers are fine. Sensation is still present in the affected index finger however ...click here to continue

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