Background: H.pylori is a gram-negative, spiral shaped, flagellated organism uniquely adaptedrnto colonize the gastric mucous layer. It affects approximately one half of the world populationrnand it is more prevalent in developing countries. The increased risk of infection is especially highrnoccupational status,),(X2 =3.708, P=0.447), number of pregnancies (gravidity) (X2 =8.314,rnP=0.140), number of people in house hold (X2=2.479, P=0.140), gestational age (age ofrnpregnancy) (X2 =7.879, P=0.069) and number of children ( parity) (X2=0.437,P=0.933).rnAnd some expected risk factors like habits of drinking alcohol (P=0.677), cigarette smokingrn(P=0.468), chat chewing (p= 0.818), drinking tea and coffee (P=0.757), using water for drinkingrn(P=1) and Intestinal parasites (P=0.306) between H.pylori stool antigen test positive results,rnhowever, the study subjects who had a habits of drinking alcohol; cigarette smoking and chatrnchewing were very few in numbers.rnConclusion: This study showed high prevalence of H.pylori infection among pregnant than nonrnpregnant women. H.pylori infection was associated with a low hemoglobin value, history ofrngastrointestinal illness and presence of Hypermesisgravidum. H.pylori infected pregnant womenrnshowed high rate of anemia than non infected pregnant women. Some expected H.pylorirnassociated risk factors like presence of intestinal parasites, smoking habit, chewing chat andrndrinking alcohol habit do not have significant association with H.pylori infection in this study.rnKey words: Anemia, H.pylori, pregnancy, Hemoglobin concentration, H. pylori Stool Antigenrntestrnrnamong those living in the developing world due to precarious hygiene standards, crowdedrnhouseholds and deficient sanitation associated with this part of the world.rnMethods: A cross-sectional study was conducted in kolfe keraniyo sub city in two health centersrn(Wereda-5 & Woreda- 9) Addis Ababa, Ethiopia among child bearing ages of women, 195rnpregnant and 137 non pregnant women matched for aged (16-40 years). A structuredrnquestionnaire was used to collect sociodemographic data of the study participants. Biologicalrndata such as blood samples were analyzed for determination of hemoglobin concentration andrnStool samples were assessed for the presence of H.pylori infection by H.pylori stool antigens testrnkit and the presence of intestinal parasites were also assessed by direct stool examination (wetrnsmear) and formol- ether concentration techniques.rnData were summarized in frequencies (%) and mean (SD) as appropriate. Chi-square tests,rnlogistic regression was used in the analysis as needed. In all cases P-value