The </span><i><span style="font-family:Verdana;">Helicobacter pylori</span></i><span style="font-family:Verdana;"> (Hp) infection is a public health problem, especially in develo</span><span><span style="font-family:Verdana;">ping countries. However, the responsibility of Hp for the occurrence of recurrent abdominal pain is still unclear. </span><b><span style="font-family:Verdana;">Objectives</span></b><span style="font-family:Verdana;">: To determine the prevalence of </span><i><span style="font-family:Verdana;">Helicobacter pylori</span></i><span> </span><span style="font-family:Verdana;">(Hp) infection in children with recurrent abdominal pain (RAP) in Brazzaville and to establish the relations</span></span><span style="font-family:Verdana;">hip between Hp infection and RAP. </span><b><span style="font-family:Verdana;">Patients</span></b> <b><span style="font-family:Verdana;">and</span></b> <b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> We conducted a cross-sectional case-control study, between March and September 2018, including 106 children with RAP and 218 children without RAP, aged 2 to 17 years old, received in health centres in Brazzaville. All the children were sub</span><span style="font-family:Verdana;">jected to detection of Hp fecal antigen by qualitative immuno-chromatography</span><span style="font-family:Verdana;"> in the faeces. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> The prevalence of Hp infection among children with RAP in Brazzaville was 43.4%. The female sex was most represented in both populations, with a sex ratio of 0.84 in the infected population. Compared with controls, these were children with a mean age of 8.13 ± 4.57 years. Infected children with RAP were unschooled in 66.7% (n = 31) of cases (p < 0.05). Those using potty were 63% (n = 29). Handwashing before meals and after using the toilet was not done in 66.7% (n = 31) and 56.5% (n = 26) of cases, respectively. The proportio