350 million people worldwide are chronic carriers of the hepatitis B virus. Mainly because of immigration, the number of children with chronic hepatitis B infection in Norway is also increasing, although the absolute number is still small. In April 2001, a group of Norwegian paediatricians interested in infectious diseases held a meeting to discuss the clinical management of chronic hepatitis B in children and develop recommendations. The recommendations are based on current European and American guidelines, experience from England and Sweden, and a review of the literature. International epidemiological data and data from Norway are briefly presented, followed by recommendations regarding diagnosis, follow-up and treatment of chronic hepatitis B infection in children. Children at risk of contracting hepatitis B from their mothers should be immunized shortly after birth. Paediatricians should follow up children with chronic hepatitis B infections in order to identify those who may be eligible for treatment.