To identify the risk factors for developing recurrent ulcer complications after recovery from an episode of peptic ulcer bleeding 611 patients admitted with peptic ulcer bleeding were studied. Some 557 (91 per-cent) were discharged without, operation, A total of 22 patients were last: to follow-up and five were excluded as maintenance H-2, blockers were required, Bf the remaining 530 patients at risk, 169 (32 per cent) developed another complication (166 bleeding, three perforations) over a median follow-up period of 36 months, Patients with duodenal ulcers at the time of bleeding, previous history of peptic ulcer, previous bleeding, history of dyspepsia longer than 3 months, and a short interval between previous ulcer complications and the index bleed were more likely to develop further complications, Sex, age, smoking, coexisting illness, nonsteroidal anti-inflammatory drugs intake and time taken to achieve ulcer healing had no predictive value.