Three-quarters of patients (74.2%) were anemic at discharge (median Hb: 108 g/L, range: 74-129 g/L) but only 12% were treated with oral or IV iron or blood transfusion; only 10% had anemia reported in their discharge letters with appropriate follow-up and management plan.<h4>Conclusions</h4>Anemia in patients undergoing emergency laparotomy is significantly under-recognized and inadequately managed at discharge, despite recognized increased morbidity. This evidence concerns the gene GSTM1 and anemia (phenotype).