A nerve biopsy is the removal of a small piece of a nerve for examination.
Biopsy - nerve
How the Test is Performed
A nerve biopsy is most often done on a nerve in the ankle, forearm, or along a rib.
The health care provider applies medicine to numb the area before the procedure. The doctor makes a small surgical cut and removes a piece of the nerve. The cut is then closed and a bandage put on it. The nerve sample is sent to a lab, where it is examined under a microscope.