Digenean trematode Fascioloides magna parasitizes in the pseudocysts within the liver parenchyma of the final hosts. Red deer is also classified as final host. As product of the host's organism pseudocysts are formed in order to prevent further migration of flukes. Though they prevent its migration, pseudocysts do not kill flukes (except in the case of a dead-end host), but he finds suitable environment within them. The aim of this research was to determine distribution of pseudocysts in red deer livers. In total, 143 red deer livers were collected and cut into three equally long parts. Observing form the diaphragmatic surface left third was composed of left liver lobe, middle third contained quadrate lobe, caudate and dorsal part of the left lobe, while right third contained right lobe and caudo-lateral part of the quadrate lobe. Observed pseudocysts were categorized according to the mentioned thirds of the livers. Significantly larger number of pseudocysts (n=655) was found in middle third, compared to left (p= .00009) and right third (p= .00001). Difference in pseudocyst number between left (n=321) and right third (n=277) was not statistically significant (p= .3492). Comparation of livers with largest number of pseudocysts in middle third with those having largest number in left and right third was statistically significant. However, comparison between left and right third has not yielded statistically significant difference. Even so, odds to find livers with largest number of pseudocysts in left third was 1.73 times higher than in the right third (OR=1.73 (CI 95% .7850 to 3.8036)). Similarly, in the cases when at least one third contained 10 or more pseudocysts, their distribution has followed the same pattern. Obtained result indicate that middle part of the liver is the most suitable for the life of the flukes.