Introduction: Health has its own social determinants (www. schulich.uwo.ca, 2022) which considerably affect the quality of provided healthcare (Baah, 2019). Chronic diseases place a significant burden on people in vulnerable social classes, races, and lower socio-economical positions and also on other groups of minorities (Havranek et al., 2015). Methods: The essence of our research was the comparison of the results of preventive medical examinations between marginalized and non-marginalized groups of patients. The chisquared test, T-test and the Chi-squared Independence Test for the contingency table were used in the processing of the data obtained. Results: In the overall evaluation of particular groups, we confirmed the significantly worse results of preventive medical examinations among marginalized patients compared to the majority population.Conclusion: The results of our research clearly confirmed a significantly higher incidence of cardiovascular risk factors among patients living in a marginalized group. Simultaneously, the results predict a higher prevalence of colon cancer in this group. Social justice is a challenge for public health and social work.