Results: From 38 cases diagnosed with myometrial Infection after Cesarean delivery performed at Tu Du hospital from April 01, 2014 to March 31, 2017 among 92000 C-section cases: we found that: most Common bacterial strain in Post-Cesarean myometrial Infection is Escherachia coli, 38/80 (47.5%) in disease-induced bacterial strains and 38/42 (90.4%) in positive blood culture; Staphylococcus epiderminis 18.7% in disease-induced strains and 15/42 (23.8%) in positive blood culture; Staphylococcus aureus 12.5% and 23.8%; Enterococcus 7.5% and 14.3%.