The aim of our study was to evaluate validity of transcranial magnetic stimulation as evaluation tool of motor pathways condition dynamics in patients with gliomas and meningitis. There were included 91 patients: 40 children with aseptic meningitis, 26 matching age controls, 10 adults with gliomas and 16 matching controls. All patients underwent transcranial magnetic stimulation (TMS) before and after the treatment. TMS showed good tolerability in all groups. Significant improvement of central motor pathways conductivity (MEPs amplitudes) was seen in both groups. In meningitis group significant rising of functional state of motoneurons was seen as well. We propose that TMS proved to be effective evaluation tool of motor pathways condition dynamic in patients with gliomas and meningitis.