Family members' communication about health has a significant impact on issues of obtaining social support, avoiding stigma, and seeking and receiving appropriate medical treatment and care. A Communication Privacy Management (CPM) theoretical perspective was used to analyze 85 semi-structured, in-depth interviews with parents and one of their adolescent children in 40 families. Findings reveal intergenerational motivations and strategies for managing individual and collective privacy boundaries around health information and the consequences of this management for individuals and families. Motivations include protecting personal privacy, preventing stress, and soliciting social support. Strategies for boundary management include humor and topic avoidance. Implications for future research in the areas of privacy management, health, and family relationships are discussed.