In 2016, out of 1207 hemocultures from patients at Sibiu county emergency hospital, 7% were infected with Staphylococcus, identifying more cases in the months with higher temperatures. Elderly people were mostly affected, regardless of gender. Due to nosocomial infections, 64% of staphylococci were MRS and they came from the surgical section of the hospital. In the present study, the Staphylococcus hemoculture infection rate was described, aiming the identification of the infections, the assessment of the colonization ratio based on the total number of cases recorded in 2016 at Sibiu county emergency hospital and pointing out of possible correlations between colonization and age, gender, hospital section origin of infections and previous treatment. The main characteristics of the species were identified using Gram staining, microscope examination, catalase test, coagulation test and antibiograms. Staphylococcus species cause a lot of conditions, especially if they are not treated properly.