Sarcocystis is a disease of Both animals and humans (Máca & González-Solís, 2022) [30] in which the parasite needs two hosts to complete its life cycle (Prakas et al., 2020) [41]. A definitive carnivore host, and an intermediate host, herbivores such as sheep (Pipia et al., 2016) [37] The study included the collection of 415 heads of sheep, to verify the presence of parasite Sarcocystis. A macroscopic examination was conducted on the esophagus, tongue, heart and diaphragm of sheep after slaughter to ensure the presence of macroscopic cysts of the parasite, where the percentage of macroscopic infections was recorded at 7.46%. 0.24% for the diaphragm. The samples were examined methods, the microscopic method, which included three methods, namely, digestion with pepsin, known as artificial digestion, The method of a garlic press, By pressing a glass slide, and the methods showed positive results. The method proved the industrial digestion to be the most efficient of its peers, as it recorded 94%, garlic puree recorded 92%, and the method of pressing the slides 87%, and the results of the microscopic examination reached by the current study showed for all samples of 415 heads of sheep that were collected from massacres Al-Qadisiyah Governorate - Iraq. The study also showed that there are significant differences under the level of significance (P<0.05). In the macroscopic cysts injuries between males and females. The percentage of male injuries is 2.07%, female injuries it reached 11.71%. While no significant differences were recorded in the microscopic injuries between males and females (94.30, 95.94%) respectively. When studying the differences in the rate of injuries depending on the age group, it was also found that there were significant differences between the ages of sheep less than 18 months, and the rate of infection was 3.19%, and between sheep aged above 18 months recorded 16.54%, and no significant differences were recorded between age groups in microscopic injuries. For less than 18 months, the infection rate was 94.32%, and for more than 18 months it was 96.99%.