As an example, immunosuppressive agents such as anti-TNF-α, preoperative anemia, preoperative hypoalbuminemia, high C-reactive protein (CRP) values, family history, duration of disease, extent of the removed specimen, nutrition status, and presence of penetration are among the risk factors that may increase the risk of postoperative abdominal complications in CD.[6–8] A thorough patient history taking is therefore essential in order to monitor patients that are at high risk of developing postoperative complications. This evidence concerns the gene CRP and anemia.