Just small punch biopsies, no scar at all. Like I said, my neurologist sent me to a pain doctor just for the biopsies, because he was set up to do them.
My SFN is idiopathic. Looking back, I’ve had various symptoms for many years, but the dramatic foot pain started at age 55 (I’m 63 now) when I stopped taking seizure medication (Tegretol). You can read my story elsewhere.
One of my sisters has the same symptoms. My dad (and his father) has had pain as long as I can remember, but not the same as mine. I have had genetic screening, but it was inconclusive.
I used to take great care of myself. Worked out with a trainer, maintained a good weight, was strong and active. The past eight years of pain have worn me down, plus I can’t do the aerobic exercise and weight lifting anymore - too painful. I swim laps now twice a week. Don’t even like it!