What causes autoimmune autonomic ganglionopathy?

What causes autoimmune autonomic ganglionopathy?

Experts don’t know exactly what causes autoimmune autonomic ganglionopathy. About 3 in 5 people with AAG develop it after getting another illness or infection.

Some people have paraneoplastic AAG. Paraneoplastic AAG occurs when your immune system makes certain antibodies in response to cancer. As with other forms of AAG, these antibodies attack the autonomic nervous system.