Should you get a biopsy to confirm idiopathic neuropathy ?

Work-up: Neuropathy can be caused by a number of things. In addition to blood work, neuro exam and electrical tests, a biopsy is often done to look at the type of nerve fibers afffected and whether there are changes in the nerve fibers themselves. The most common biopsy we do is a skin biopsy involving a small punch of skin looking for small fiber neuropathy.