Rhabdomyolysis, or acute skeletal muscle destruction, may be accompanied by myoglobinaemia, myoglobinuria, and an elevated serum creatine kinase level. This disorder has many potential causes. In this article, the authors describe a case of rhabdomyolysis occurring after vigorous weight lifting by a man who was supplementing his weight-training programme with the intake of anabolic androgenic steroids dispensed to him by a colleague.