The paper reports on the authors' experience used on 164 patients with complicated postbulbar ulcers (12% of the duodenal ulcers) with hemorrhage (52 cases), perforation (9 cases), duodenal stenosis (13 cases), stenosis and penetration (36 cases) and pancreatic-biliary penetrations (36 cases). The frequency of hemorrhagic complication was of 31%. As the hemorrhage due to postbulbar ulcer is favoured by vascular fistula, the severe character of the hemorrhage and the frequency of the recurrence, mainly the cataclysmic one, impose the radical surgery as early as possible. The following were used: large Reichel-Polya's gastrectomy (26 cases with 7 deaths) Péan's gastro-duodenectomy (12 cases), Péan's hemigastrectomy+vagotomy (4 cases), gastrectomy for exclusion with hemostasis in situ and ligature of gastroduodenal artery (8 cases, of which 1 with vagotomy and 2 deaths) and pyloroplasty with vagotomy and hemostasis (2 cases). The postsurgical mortality was of 17%. In 9 cases with perforation: Reichel-Polya's gastrectomy in 5 patients (1 death), Péan's gastrectomy in 2 cases, excision pyloroplasty and suture of the perforation in one case, respectively, were used. In the postbulbar ulcers penetrating into the pancreas or into the hepatic pedicle associated with stenosis (36 cases) the following were performed: Reichel-Polya's gastrectomy (7 cases), Péan's gastrectomy (7 cases of which 2 with vagotomy) gastrectomy for exclusion of ulcer in 19 cases, of which 5 with vagotomy, Péan's hemigastrectomy+vagotomy (3 cases). The 36 cases of ulcers penetrating into pancreas were solved as follows: gastrectomy for exclusion (16 cases of which 5 with vagotomy), Reichel-Polya's gastrectomy (10 cases of which 1 with vagotomy), Péan's gastrectomy (10 cases of which 2 with vagotomy). In 13 patients with stenosed ulcers, Reichel's-Polya's gastric resection (10 cases), Péan's gastrectomy, gastrectomy for exclusion and gastrojejunostomy (in one case each) were performed. The conclusions may be drawn that the postbulbar ulcers are complicated ulcers that require differentiated surgical treatment, as early as possible, for diminishing the postsurgical morbidity and mortality (7.5% mortality).