Debi,

I would 'guess' you are correct that he only did one site, because he is a podiatrist and doesn't know enough about neurology and length dependent neuropathy. A good neurologist would always do two sites. Your doctor was concerned with your feet, since this was your main complaint, so he was likely only addressing that area and nerves closest to the foot.

At least he did this and you had a clue what was going on. There are still many people with clear indications of SFN that are only getting NCS and EMG's (neither of which can show density or damage to the small fibers). The biopsy is a bit pricey, so many have to fight to get it done...many of which lose the battle and gone on with no answers.