Hi Judy @judyeccles, We added a little to your discussion title to help members with experience find your discussion. Here's some information on the test from Neuropathy Commons for those not familiar with the test.

"Abdominal Fat-Pad Biopsy
Involves removing a tiny amount of fat from under the skin of the belly using a needle and local anesthesia. This can detect deposits of abnormal protein known as amyloid. If this protein builds up in nerves, it can cause neuropathy."
-- Blood Tests To Identify Medical Causes of Neuropathy:
https://neuropathycommons.org/get-tested/blood-tests
There are a few members who have posted about having a Fat Pad biopsy. Here's a link that shows members who have mentioned Fat Pad biopsy in comments - https://connect.mayoclinic.org/search/comments/?search=fat%20pad%20biopsy

Does your doctor suspect you may have another condition that is causing the neuropathy?