The high IL‐17 levels in plasma of GBS patients demonstrated that Th17 cells might play a pivotal role in the pathogenesis of GBS (Han et al., 2014; Li, Yu, Li, Zhang, & Jiang, 2012).However, limited information is available about the relationship between IL‐17 change trend and disease evolution of EAN. The gene discussed is IL17A; the disease is Guillain-Barre syndrome.