Two cases of secondary haemorrhage into subcapsular haematomas with delayed splenic rupture are presented. Ultrasound and computed tomography were essential in the diagnosis. In one of the cases a large splenic laceration was diagnosed by these two techniques 23 days following trauma. Ultrasound is of particular value and can be performed with ease in the clinical follow-up of patients who have sustained multiple injuries requiring immobilisation and orthopaedic traction.