SUMMARY
IntroductionHepatitis B virus (HBV) is a liver disease caused by hepatitis B - hepatitis B virus (HBV). This virus has an affinity to liver cells, cause both acute and chronic viral infections of varying severity.AimThe aim of this study was to analysis of incidence of hepatitis B in Poland in 2010-2014.Material and methodsThe material analyzed in the work were cases of hepatitis B registered in Poland in 2010-2014, taking into account gender, age and place of residence infected published in the form of annual bulletins "Infectious diseases and poisoning in Poland by the National Institutes of Health in Warsaw (NIH).ResultsIn the analyzed period there was an increase in the number of cases of hepatitis B in Poland. Most cases are recorded in the age group above 40 years.