Methicillin Resistant Staphylococcus aureus (MRSA) is a main cause of severe human infections. The aim this study was to detect chlorhexidine resistance MRSA by phenotypic and genotypic methods. Fifty strains were isolated from different hospitals Mansoura University over period one year December 2021 till November 2022. antimicrobial susceptibility test conducted the disk diffusion method, exc...