The purpose of this study was to establish a correlation between markers of inflammation and the risk of rectal stenosis or obstruction, in patients with rectal adenocarcinomas. We performed a retrospective observational study on 188 patients diagnosed with rectal adenocarcinomas. We attempted to establish a correlation between the neutrophils to lymphocyte ratio(NLR), platelet to lymphocyte ratio(PLR) levels and the presence of rectal stenosis or rectal obstruction. From 188 patients included in the study, 65 patients had stenotic tumors (34.57% of cases) and 10 patients had occlusive tumors (5.31% of cases). We obtained a statistically significant correlation between the blood levels of neutrophils, lymphocytes, platelets, and the existence of rectal stenosis. (p[0.05). The cutoff value of NLR that correlates with the presence of rectal stenosis was 2.5 (95% CI: 0.426-0.574, AUC: 0.500). As for PLR, the cutoff value correlated with the presence of rectal stenosis was 106,522 (95%CI: 0.428-0.575, AUC: 0.502). We established a statistically significant correlation between NLR, PLR and rectal obstruction (p[0.05). The cutoff value of the NLR that correlates with the presence of rectal obstruction was 4.633 (95%CI: 0.614-0.751, AUC: 0.685). As for PLR, the cutoff value correlated with the presence of rectal stenosis was 345.05 (95% CI: 0.673-0.803, AUC: 0.742). Our study shows that there is a statistically significant correlation between NLR and PLR and the risk of rectal obstruction in patients with adenocarcinomas. It is still necessary to conduct prospective studies on much larger lots of patients to determine the NLR and PLR values that can predict rectal stenosis as well as rectal obstruction.