Fibular tunnel syndrome is the most common tunnel syndrome of the lower extremity. Compression of the fibular nerve most often occurs at the level of the fibular head. The article describes in detail the etiology and pathogenesis of this tunnel neuropathy. Clinical manifestations of fibular tunnel syndrome are considered, methods of diagnosis and treatment are described. The prognosis of peroneal nerve neuropathy is favorable, and in most patients there is a complete or almost complete restoration of nerve function. If conservative treatment is ineffective, surgical techniques are recommended.