There are several causes of small fiber neuropathy, including diabetes, vitamin deficiencies, autoimmune problems
The other type of sensory neuropathy is called a large fiber
neuropathy. There are several categories of this type of
neuropathy,
and there are many many causes. Sensory neuropathies can involve just one nerve or several nerves in the body. Some types of sensory neuropathies occur and progress very slowly, others sort of wax and wane (with flare-ups) and some are progressive.