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The present study was conducted from April 2018 to May 2019 at Al-Diwaniyah teaching hospital (Al-Qadisiyah province/Iraq) to investigate the incidence of coccidian protozoa in patients suffering from gastrointestinal symptoms using conventional classical methods and staining technique. Stool samples were collected from 1136 patients to detect the coccidian sporozoa. The result shows overall of the patients, sporozoa infectionswere 470/ 1136( 41.3 % )were positives. Wet amount and staining method were used to detect the intestinal coccidian oocysts and the results show that Cryptosporidium parvumwas 237/1136 ( 20.8%), Isospora belli was128/ 1136 (11.2%) and Cyclosporacayetanensiswas 105/1136 ( 9.2%).Concerning to social factors (age, gender, residence and other factor effect on the rate of the infection such as alcoholism, diabetes patients, chemotherapy patient ) were recorded , significant elevation (P<0.05) were obtain statistically in groups.