The 1st Congress of the Polish Society of Paediatric Oncology and Haematology took place in 2001 in Bydgoszcz, while the Society was officially registered in 2002. It associates people specialising in professional diagnostics and treatment of oncological and haematological diseases in children. Members of the Society include paediatricians, surgeons, oncologists, haematologists, immunologists, lab technicians, geneticists, physiotherapists and psychologists. The aim of the Society is connecting all people involved in paediatric oncology and haematology in Poland. The main goals of the Society are: initiation and coordination of educational activities, development of scientific activities, preparation and updating of standards for diagnostics and therapy, promotion of knowledge on paediatric oncology and haematology in Poland and aboard.