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Genogram vs Pedigree Chart: What's the Difference?
Both genograms and pedigree charts use squares and circles, and both span generations, which is why they get confused. A pedigree chart tracks one genetic trait through a family, while a genogram maps everything else; relationships, behavior, and general health patterns.
Genogram vs Pedigree Chart
Genogram Example
A genogram built for a family assessment might show three generations with a health condition noted on one person and an emotional relationship line (close or conflicted) between two others; the kind of relational and general-health detail a pedigree chart doesn't capture.
Genogram
Pedigree Chart Example
A pedigree chart traces one condition through a family using standardized carrier and affected-status symbols; commonly shown for an autosomal recessive condition like cystic fibrosis, where unaffected carriers can still pass the trait to their children.
When to Use Which
Use a genogram when you need to understand family dynamics, relationship quality, or behavioral patterns for therapy, social work, or casework.
Use a pedigree chart when you're tracing how a specific genetic condition passes through a family, for genetic counseling or risk assessment.
Can They Be Used Together?
A medical genogram can incorporate pedigree-style tracking of specific conditions alongside emotional and relational data, but formal genetic counseling still relies on standardized NSGC pedigree notation; carrier and affected-status symbols that a genogram tool isn't built to replace.
EasyGenogram's Health Conditions field records general health information as part of the family picture; it isn't a substitute for a clinical pedigree chart.
FAQ
What's the main difference between a genogram and a pedigree chart?
A pedigree chart tracks one genetic trait or condition through a family, showing who's affected, a carrier, or unaffected. A genogram is broader; it maps relationships, general health, and behavioral patterns across generations.
Do genetic counselors use genograms?
Mostly they use pedigree charts, since that notation is standardized for tracking inheritance. Some incorporate genogram-style relational detail when family dynamics are relevant to a diagnosis or family planning conversation.
Can a genogram replace a pedigree chart?
Not for formal genetic counseling. A genogram can hold general health information, but it doesn't use the standardized carrier and affected-status notation that genetics work requires.
How many generations does each one usually cover?
A genogram typically covers three generations. A pedigree chart often goes further, sometimes five or more, since tracing inheritance patterns needs more generational depth.
Should social workers learn pedigree charts too?
Not usually a priority. Genograms are the standard tool in social work and family therapy. Pedigree charts are specialized for genetics and mainly relevant for interdisciplinary work with genetic counselors.