Development of a hepatic pseudoaneurysm (HPA) is a well-known, yet rare complication after liver trauma. We found 135 cases reported in the literature since 1965. Ruptured HPAs may have severe consequences with sudden massive haemorrhage and death. A clear strategy towards diagnosis and management of HPA post liver trauma is needed and outlined in this paper. We recommend early detection and definitive treatment before enlargement and rupture.