van Warmerdam J, Sutradhar R, Kurdyak P, et al. - Given a profound effect of a diagnosis of childhood cancer on the entire family unit, researchers sought to ascertain its impact on the long-term mental health of family members. Via linking a provincial childhood cancer registry in Ontario, Canada, to birth records, they recognized 4,773 mothers and 7,897 siblings of children diagnosed with cancer between 1998 and 2014. Observations revealed an elevated and prolonged need for mental health-related healthcare for both mothers and siblings as compared with the general population. Increased risk of adverse mental health among mother and sibling was observed in correlation to the following demographic factors: younger maternal age at cancer diagnosis, low socioeconomic status, and rural residence among mothers and older sibling age among siblings. Findings support improving psychosocial support for family members during and after cancer therapy.