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From the microbiological laboratory of the Cantonal hospital "Dr. Irfan Ljubijankić “Bihać, who performs microbiological processing of all biological samples of hospitalized patients in the KB Bihaćl, collected data on performed blood cultures for the periods from 2015 to 2020. For the processing of blood cultures, the microbiological laboratory uses an automated system for the detection of microorganisms in blood and primarily sterile fluids - BD BACTEC 9050. The procedure of causing blood cultures is carried out according to standard recommendations for causing and processing blood cultures. In the period from 2015 to July 2020, the microbiological laboratory of KB Bihać processed a total of 2,037 blood cultures. The number of processed samples in the microbiological laboratory of KB Bihać during six years ranged from 208 to 425 pairs of blood cultures. The proportion of positive blood cultures ranged from 7% to 16%, and the proportion of contaminated samples ranged from 2% to 12%. The largest number of processed blood cultures was in 2019. The highest number of contaminated blood cultures was recorded in 2020 in the amount of 12% by July 2020. Descriptive statistics methods were used in data processing. One of the most common, but also the most common bacterial isolates was Escherichia coli. ESBL strains among E. coli isolates from blood range from 1.5%. Then E.coli is followed by Staphylococcus aureus. Brucella spp. had a high number of isolates, Klebsiella pneumoniae had 12 isolates. Behind it in terms of the total number of 12 isolates were Streptococcus pneumonia and Streptococcus beta-haemolyticus B groups. While Enterococcus spp. had 10. The smallest number of isolates had Proteus spp. and Citrobacter spp. per 1 isolate present in 2015 where we have no occurrence in other years. Other isolates are: Streptoccocus spp., Staphylococcus spp., S. epidermis, Alcaligenes faecalis, Pseudomonas spp. and Streptococcus beta-haemolyticus C group 1 isolate each in the period from 2015 to 2020. [ABSTRACT FROM AUTHOR]