autonomic dysfunction is a condition in which the autonomic nervous system (ANS) does not work properly. This may affect the functioning of the heart, bladder, intestines, sweat glands, pupils, and blood vessels. Dysautonomia has many causes, not all of which may be classified as neuropathic.
Abnormal protein buildup in organs (amyloidosis), which affects the organs and the nervous system. Autoimmune diseases, in which your immune system attacks and damages parts of your body, including your nerves. ... Diabetes, especially with poor glucose control, is the most common cause of autonomic neuropathy. You might feel warmth or a tingling sensation during the test. Thermoregulatory sweat test. ... Your sweat pattern might help confirm a diagnosis of autonomic neuropathy or suggest other causes for decreased or increased sweating. Urinalysis and bladder function (urodynamic) tests.