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Basic Symbols

Fraternal Twins Symbol

Two symbols connected by lines to a common point above represent fraternal twins

Standard genogram notation for fraternal twins symbol

How to Use This Symbol

Used to show non-identical twins who share a womb but have different genetic makeup

When to Use the Fraternal Twins Symbol

The fraternal twins symbol is an essential part of standard genogram notation. Proper use of this symbol helps ensure your genogram can be understood by other clinicians, researchers, and family members.

Best Practices

  • Always use consistent symbol sizes throughout your genogram
  • Place symbols in the appropriate generational row
  • Include relevant dates and information near the symbol
  • Use standard line connections to show relationships

Frequently Asked Questions

What does the fraternal twins symbol represent in a genogram?

Two symbols connected by lines to a common point above represent fraternal twins

When should I use the fraternal twins symbol?

Used to show non-identical twins who share a womb but have different genetic makeup

Is the fraternal twins symbol standardized across all genograms?

Yes, the fraternal twins symbol is part of standardized genogram notation developed by Monica McGoldrick and Randy Gerson. Using consistent symbols ensures your genogram can be understood by clinicians, researchers, and family members worldwide.

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