Three cases of congenital malformation were observed, including cases of anal imperforation at the Lubumbashi Surgery and Traumatology Center in the Democratic Republic of Congo. These cases concerned the anal imperforation observed in three new male babies from the ex-triangle of death in the province of Upper Katanga (The Democratic Republic of The Congo). One case presented dehydration in stage B. Colostomy was the first act to save the three newborns. The colostomies were repaired after reopening the anal orifice. No deaths were recorded.