A diagnosis of childhood cancer represents challenges for patients, family members, and health workers. The parents of a child or adolescent have to play an expanded role because they need to reconcile parental tasks and treatment demands. This study presents an integrative literature review concerning difficulties experienced by pediatric caregivers during onco-hematological treatment. The CAPES periodicals portal and the Scientific Library Online (SciELO) were searched for papers published between 1999 and 2009. Relevant themes are highlighted in Brazilian and international studies published in the field, such as psychological disorders experienced by caregivers, the professional and financial impact associated with treatment, changes in educative practices and family dynamics, and the influence of cultural practices on the experience of treatment. Suggestions for further research are presented to support efficient psychosocial interventions and minimize the psychosocial costs experienced by pediatric caregivers over the course of onco-hematological treatments.