The aim of this work was to determine the reasons for organ seizures at the slaughterhouse level and the economic and social impact of such seizures. A total of 2,597 carcasses were inspected during this study, of which 283 cattle (10.90%) and 893 sheep (34.40%), 1,419 goat (54.63%) and 2 camellia (0.07%). The month of February 2020 recorded the highest rate of slaughter, 1075 head (41.40%). The analysis of the data showed that male and female goats constitute the most important slaughter. Overall, the proportions are 80.95% for females compared to 19.05% for males of all species combined. For partial seizures, it is noted that distomatosis is the most important reason for seizure with 557 pieces, i.e. 40.95% of the total number of pieces seized. Furthermore, after all calculations, it is noted that the seizures recorded during three months of monitoring resulted in a total loss of around 76,000 FCFA. In February 2020, the losses were the highest with 46,500 FCFA. These investigations were carried out in the communal slaughterhouse of Tillabéri, in order to contribute to enrich the scientific sphere, but also to identify the dangers, sources of disease in humans and to provide our doctors with a lead to improve public health.