Sickle cell disease is an inherited disease characterised by the presence of an abnormal haemoglobin. Sickle cell disease can be complicated by acute vaso-occlusive crisis, which are the major clinical problem prompting admission to hospital and the major cause of death. It mainly manifests by osteo-articular pain and acute chest syndrome and can be complicated by multi-organ failure. The main treatment of severe acute vaso-occlusive crisis is based on transfusion.