This is a retrospective study of 72 patients with non-iatrogenic penetrating injuries of the brachial artery treated between 1991 and 1993. The mechanism of injury was stabbing in 39 per cent, a bullet in 51 per cent, pellets in 4 per cent and a dog bite in 6 per cent. We believe that angiography is rarely indicated, as in all our patients the diagnosis was made on clinical grounds. The proximity of the injury to neurovascular bundles was a poor predictor of arterial injury. One month after discharge 95 per cent of the patients had palpable distal pulses. Long-term morbidity is mainly attributed to associated nerve injuries.