Stool samples of 236 patients with acute and chronic gastrointestinal symptoms admitted to Ege University Medical Faculty Parasitology Outpatient Clinic Laboratory between July 2009 to June 2010 were examined. One hundred eleven out of 236(47%) patients admitted to the laboratory during summer and autumn period with acute gastrointestinal symptoms while other 125 patients (53%) admitted during winter and spring with chronic symptoms. At least one parasite was determined in 112 out of 236 (47.45%) patients. In retrospective analysis, it has determined that the bacteriological examination of stool samples were also performed in 121 out of 236(51.7%) patients. Seven out of 121 (5.78%) patients admitted both bacteriological and parasitological laboratories together had at least one bacterial agent in their stool examination. Five out of 7 patients were found to be having bacteriological and parasitological mixed infection. Our findings showed that it is important to perform both bacteriological and parasitological examinations together in patients admitting to hospital with intestinal symptoms due to these mixed infections. Performing both diagnostic techniques together will improve accurate diagnosis, treatment and understanding possible etiological reasons of these mixed infections.