Specific features of thoracic tuberculosis were studied in children with various forms of tuberculosis of bones and joints, i.e. tuberculous spondylitis, arthritis and osteitis. Peculiarities of the clinical course and of complications of thoracic tuberculosis were detected in children with the mentioned clinical forms, which are mostly pronounced in spinal tuberculosis and tuberculosis of joints. A complicated course of thoracic process predetermines the duration of treatment and affects the choice of time for surgical intervention.