Is small fiber neuropathy inherited ?
Small fiber neuropathy is inherited in an autosomal dominant pattern, which means one copy of the altered SCN9A gene or SCN10A gene in each cell is sufficient to cause the disorder. In some cases, an affected person inherits the mutation from one affected parent. Other cases result from new mutations in the gene and occur in people with no history of the disorder in their family.  When the genetic cause of small fiber neuropathy is unknown or when the condition is caused by another disorder, the inheritance pattern is unclear.