My SFN had increased in pain by the time the repeat biopsy was done (hence why we did it). The density was decreased from the first but more importantly, the condition of the fibers was once again showing clear damage...at every location (and I had 6 locations done--three sites on each leg---ankle, just above the knee and upper thigh). So the damage was wide-spread, typical with Sjogren's.

I have heard people here say that their pain turned to numbness, but most often I think it's just increased pain as the SFN worsens. The repeat biopsy would show definitively what you have going on...especially if they do morphology testing.