Inhibition activity of extracts (acetone, ethanol, water) parts of the (Myrtus communis L.) (root, stem, leaves, fruits) with concentrations (25,50,75,100%) was carried out against growth of Gr- and Gr+ bacteria which were isolated and identified from the pathogenic specimens of The University Children's Hospital bacterial laboratory in Damascus, using agar well diffusion method on Mueller – Hinton medium.