A decrease in the number of movements (oligokinesia) is a typical manifestation of various forms of parkinsonism: primary or symptomatic, parkinsonism-plus. It occurs in temporal lobe epilepsy, some encephalopathies and mental disorders. The cause is established on the basis of complaints, anamnesis data, results of a neurological examination and additional diagnostic procedures. Treatment includes dopaminomimetics, symptomatic agents. Surgical interventions are carried out according to indications.