A lump has appeared on the knuckle of my index finger. It isn't painful but is sore when I move the finger (when the skin gets stretched over the lump). The skin over the lump is lightly red. I have full mobility and the lump isn one the knuckle not to the side
I'm nearly 50 and there isn history of arthritis in my family. I developed sero-negative rheumatoid arthritis at 13, but apart from one short bout when I was about 18, I have had no symptoms apart from swollen ankles ever and no pain.
Any clues...is this the start of oesteo-arthritis?
Photo attached
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