This cross sectional study was conducted from October 2023 to March 2024, on 170 patients attending Gastroenterology outpatient clinic in Benha University hospital and aimed to investi-gate the association of intestinal parasites with H. pylori infection and the associated symptoms.
Stool samples were collected and examined within an hour by: direct wet smear technique, concentration method and Modified Ziehl-Neelsen stain. A rapid chromatographic immuno- as-say was used for the qualitative detection of H. pylori copro-antigens in stool. All patients with aged ranged from 20 to 60 years old, were 73 males (42.94%) and 97 females (57.06%) pre-senting with gastrointestinal manifestations.
The results showed that 103 (60.59%) patients were positive H. pylori copro-antigen in stool and 24 (14.12%) had different intestinal parasites. There was a significant association between intestinal parasites and H. pylori infection (P= 0.0001). Besides, intestinal parasites were asso-ciated with H. pylori were in (18.45%) of positive patients, and in (7.46%) of H. pylori negative patients.
There was significant difference for different types of intestinal parasites as regarding H. pylori infection (P=0.007). Entamoeba histolytica 11 (10.68%) were the most frequently detected par-asite in association with H. pylori, followed by Giardia lamblia 5 (4.85%) and Enterobius ver-micularis 2 (1.9%).