ABSTRACT
During one year [1988], 101 adult patients [28 males and 73] females from Mosul area, suffering from chronic non-specific urinary tract infection [Chr. UTI] for more than one -year in spite of repeated treatments were subjected to a variety of investigations to reveal the presence of concealed urinary tuberculosis. Sediments of 2.hours urine samples including two early mornings were examined directly by Zeihl-Neelsen stain and by culture, using Lowenstein-Jensen and/or Sula media. The same urine examinations were carried out on a control group consisting of 22 adult persons [9 males and 13 females] who were not suffering from chronic UTI. The study revealed positive results for AFB in 31 cases [30.69%] either by direct microscopy or culture None of the control group showed any positive results