The discovery of Helicobacter pylori (Hp) and the causal relationship between Helicobacter pylori infection with chronic gastritis, gastric and duodenal ulcers and gastric cancer is an epochal event in recent times. The aim of this study was to examine the prevalence of Hp infection and prove the connection between Helicobacter pylori infection and gastric and duodenal diseases in different age and gender categories. Study included 250 subjects of both sexes, different age groups selected random sample. All respondents were subjected to Hp urease test from biopsy specimens of the antrum and corpus of the stomach obtained by upper gastrointestinal endoscopy with standard forceps. The data were analyzed using descriptive statistical methods (CF, SD, Min, Max) and analytical statistical methods. (t test, Chi square test, Kruskal-Wallis test, MannWhitney U test, Wilcoxon test, analysis of variance, ANOVA, Spearman correlation and Persona). Non ulcer gastropathy was the dominant finding that the Hp urease negative (92.2%) and the Hp urease positive (77%)respondents .Duodenalni ulcer was common in the male sex (24.6%) and gastric cancer (2.9%), and stomach ulcer was common in women (4.5%). The most common representation non ulcer gastropathy in the fifth and sixth decades of life while duodenal ulcer was most common in the fifth decade (37.5%). Gastric ulcer was noted in the second, third and fourth decade of life. Gastric cancer is 100% of cases was recorded in the sixth decade of life. Hp Urease test that requires upper digestive endoscopy and biopsy specimens of gastric mucosa is the minimum invasive diagnosis of Helicobacter pylori infection. Upper gastrointestinal endoscopy and HP verification changes the standard in the diagnosis of associated diseases of the stomach and duodenum. (non ulcer gastropathy, gastric and duodenal ulcers and gastric cancer).