Background: Asymptomatic bacteriuria is defined as thepresence of significant bacteriuria>105 colony formingunits (cfu)/mL without the symptoms of an acute urinarytract infection. Pre-eclampsia is defined by blood pressureof greater than 140/90 mmHg after the 20th week of pregnancy and proteinuria of equal to or higher than 300 mg per24 hours.Objective: Detecting the incidence of asymptomatic bacteriuria among study group at El shatby antenatal care clinic and investigate the association between development ofPE and presence of ASB.Subjective: The study included 80 pregnant women.Quantitative culture remains the gold standard for diagnosis of urinary tract infection in pregnancy,Microscopic examination of a wet film of uncentrifuged urinewas carried out to detect the presence of pyuria, whichis considered when pus cells are >5 pus cells / HPF.Amount of urine (1 μl) is inoculated on MacConkeyagar,blood agar and sabouraud dextrose agar plates. Theplates are incubated for 24-48 hours at 37°C. After incubation, the colony count of a pure single organism is performed a significant bacteriuria is considered when the colony count is >105 (cfu/ml).Results: The net result of our study showed that the patients were screened for asymptomatic bacteriuria and theincidence was 30%. Asymptomatic bacteruria was morecommon in preeclamptic group (37%) than control group (22%) but with no significant difference.Conclusion: Asymptomatic bacteriuria was a commonfinding among pregnant women in our study ( 30% ofwhole cases).