The collection of family history is a part of the anamnesis in which the individual is questioned about the presence of certain diseases in their ascendants or descendants. It is advisable to create a complete family tree, and it should include the kinship relationships of the different individuals, their sex, age and those phenotypic characteristics of interest.
There are multiple online tools for creating a family tree or genogram.
https://www.progenygenetics.com/online-pedigree/
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