Introduction There are no definitive parameters to guide the etiology and severity of pediatric antrochoanal polyps. Objective The aim of our study is to compare the values of blood cell distribution parameters in cases of pediatric antrochoanal polyps (ACPs) with those of the control group. These values may be guiding parameters in determining the etiology of ACPs and evaluating the severity of the disease and the risk of recurrence. Methods Blood count values of patients operated for pediatric ACPs were retrospectively analyzed and compared with the data of the control group with the same age and gender distribution. The ACPs group was divided into subgroups in terms of inflammation, severity, and recurrence, and these subgroups were statistically compared as well. Results When the ACP patient group and the control group were compared, there was no statistically significant difference between the two groups. When we compared the patients considering the CT findings, there was a statistically significant difference between the stage III patients and the control group in terms of mean platelet volume (MPV) and platelet-to-lymphocyte ratio (PLR) values (p < 0.05 in both). Similarly, the MPV and PLR values were significantly higher in the recurrence patient group than in the control group. (p < 0.05 in both). Conclusion As a result of the data obtained, it can be suggested that inflammatory parameters in pediatric cases of ACPs vary in terms of recurrence and the severity of the disease.