According to Johns Hopkins Medicine, infections caused by various species of Staphylococcus bacteria, as well as Streptococcus and Pseudomonas species, are responsible for most post-operative infections. Post-op infections are one of the major causes of extended hospital stays and even permanent injury or death. How do people get infections in a supposedly sterile environment? If I am the victim of a post-operative infection, can I collect damages for my increased medical bills as well as my pain and suffering?