Helicobacter pylori (Hp) is a pathogen of human gastric mucosa and is
considered as the major cause of chronic gastritis and duodenal ulcer
disease recurrence, The prevalence rate of Hp infection increases with
age and is related to low socioeconomic status in childhood. Childhoo
d appears to be a high-risk period for Hp infection. Clinical and hist
ological features of Hp infection are variable and often moderate in c
hildren. This is probably due to both genetic and environmental factor
s. Abdominal pain is the most frequent symptom and is usually associat
ed with a mild chronic gastritis. Serology, C-13-urea breath test, bac
terial culture and histological examination of biopsy specimen can be
used for the diagnosis of Hp infection. Eradication of Hp infection is
difficult and indications and modalities of treatment need to be spec
ified in children. A better knowledge of epidemiology and natural hist
ory of Hp infection in childhood should permit to answer these questio
ns.