[Is asymptomatic bacteriuria in pregnancy combined with pyuria? (author's transl)]

The midstream urine of 269 pregnant women between 10 and 36 weeks gestation were investigated bacteriologically by the semi-quantitative dip method and microscopically for leukocytes in the urinary sediment. In 20 of 269 urines (7%) an asymptomatic bacteriuria was found but only in 10% of these bacteriurias leukocytes were found in the urine. An isolated pyuria without significant bacteriuria was found in 15 of 249 urines (6%). The assumption that a physiological pyuria exists in pregnancy was not substantiated.