


Sudomotor testing evaluates the function of the small nerve fibers that control sweating. These nerves are part of the autonomic nervous system, and abnormal function may suggest autonomic neuropathy or other nerve disorders. The test can be useful for patients experiencing unexplained sweating changes, tingling, burning pain, or symptoms associated with small fiber nerve damage. Because autonomic issues often overlap with broader neurological symptoms, patients may also need assessment through our neurology services.










The autonomic nervous system controls many essential body functions, including sweat gland activity. When small nerve fibers become damaged, patients may experience abnormal sweating patterns, burning sensations, or unexplained nerve pain.
Sudomotor testing helps clinicians evaluate the function of these small nerve fibers. By measuring how sweat glands respond to stimulation, physicians can detect early signs of autonomic nerve dysfunction.
At Universal Neurological Care, this test plays an important role in identifying neuropathies that may not yet appear on other diagnostic studies.
