_Trichomonas vaginalis_, a flagellate protozoan parasite inhabiting the urogenital tract of humans and it is the most common nonviral sexually transmitted pathogen. This is a cross section study done upon 43 ladies complaining of leucorrhea who attended the outpatient gynecology clinic of Sohag University hospitals during the period between January 1st and April 30th,2011. High vaginal sterile swabs were taken ... إقراء المزيد