Introduction. Osteopathic correction (OC) is aimed to eliminate somatic dysfunctions, which are reversible structural and functional disorders of tissue mobility. Adaptation mechanisms of the organism imply structural The aim of the study is to investigate the fundamental possibility of using functional (not nosological) autoimmunological indicators to evaluate the results of osteopathic correction.Materials and methods. The prospective study was conducted on the basis of the Department of Osteopathy of the Mechnikov NWSMU and the Institute of Osteopathy (Saint-Petersburg) in 2020–2021. 10 young and middle-aged people (20–52 years old) were examined. Patients underwent osteopathic correction in the amount of 2–3 sessions. Patients were examined according to the algorithms of osteopathic diagnostics; the ratio of antibody titers to 24 autoantigens of various body tissues and organs was evaluated using the ELI-Viscero-Test-24 method before and after the OC courses.Results. The relative content of autoantibodies to the main connective tissue protein collagen significantly (p=0,037) increased from a median value of 6 % (Q1–Q3 2–9 %) to 11 % (Q1–Q3 2–22 %). The other autoimmunological indicators varied in different directions.Conclusion. It is likely that OC triggers the processes of connective tissue restructuring, which are reflected in an increase in the indicators of auto-AT to collagen. Changes in other autoimmunological indicators require more detailed studies on a larger sample.