BOSTON—Although an estimated 40 million Americans suffer from small fiber polyneuropathy, there are still many unknowns surrounding the symptoms and causes. Experts know the condition can be caused by a variety of diseases from diabetes to HIV, but up to 50% of patients with small fiber polyneuropathy (SFPN) are given an idiopathic diagnosis (Curr Pain Headache Rep 2011;15[3]:193-200).
Researchers are actively working to better define the disease. Focusing on patient-centered research,