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Genogram example · Medical & hereditary

Huntington's Disease Family

A three-generation genogram illustrating the autosomal dominant inheritance pattern of Huntington's disease. The grandfather was diagnosed at 45 and died at 58.
Updated October 2026 · GenogramAI Clinical Team

Quick answer

This Huntington's Disease Family genogram covers 3 generations and 10 family members born between 1940 and 2005, centered on Natalie Grayson. Standard notation shows shading for genetic and neurological conditions. It shows how a family health history is laid out for hereditary review.
Huntington's Disease Family genogram drawn in standard genogram notation: 3 generations, 10 family members
Huntington's Disease Family genogram, rendered in GenogramAI. Select Explore interactively to inspect each person and line.
Open in the appPan, zoom and inspect each person and relationship.

At a glance

This example
Generations3
Family members10 (5 male, 5 female)
Birth years1940 to 2005
Deceased1
Index personNatalie Grayson
Conditions markedGenetic Conditions and Neurological Conditions
CategoryMedical & hereditary
TagsMedical, Educational

About this genogram

A three-generation genogram illustrating the autosomal dominant inheritance pattern of Huntington's disease. The grandfather was diagnosed at 45 and died at 58. The father is showing early motor symptoms at 42. An aunt chose not to undergo predictive testing. The index patient, a 25-year-old, faces the difficult decision of whether to pursue genetic testing. CAG trinucleotide repeat counts and age of onset data are documented.

Medical analysis

Overview

This 3-generation genogram maps 10 family members with birth years spanning from 1940 to 2005, comprising 5 males and 5 females (1 deceased). The genogram tracks 2 medical/psychological condition categories. The index patient is Natalie Grayson (b. 2001), graduate student, genetic counseling.

Across 3 generations, the Huntington's Disease Family family demonstrates hereditary risk patterns. The founding generation includes Walter, Ruth, Edward, with 1 member presenting health conditions.

Health conditions

Medical and psychological conditions are documented in 4 of 10 family members (40%). Neurological conditions appear in 4 members (Walter, Philip, Natalie...), affecting 1 female and 3 males. Genetic conditions appear in 3 members (Walter, Philip, Luke). Comorbidity is observed in 3 family members, with Walter presenting 2 concurrent condition categories. The multigenerational prevalence of neurological conditions suggests both genetic predisposition and possible environmental or behavioral transmission pathways.

Genetic counseling perspective

From a genetic counseling perspective, this genogram provides critical risk stratification data. The clustering of neurological conditions and genetic conditions across generations indicates heritable risk factors. Healthcare providers can use this multigenerational map to guide screening recommendations, inform preventive strategies, and counsel family members about their individualized risk profiles.

How do you read the Huntington's Disease Family genogram?

Work through it in layers, from the people to the lines between them.
  1. 1

    Find each person and generation

    Squares are males and circles are females, and each row is one generation, oldest at the top. This one has 5 males and 5 females across 3 generations.
  2. 2

    Check the status markers

    Markers on a symbol add facts about that person: Deceased (X) and Index Patient (Arrow). 1 person is marked deceased. The index person, the focus of the assessment, is Natalie Grayson.
  3. 3

    Follow the family lines

    Horizontal lines join partners and vertical lines drop to their children, born left to right in birth order. This genogram uses Marriage and Parent-Child lines.
  4. 4

    Read the shading

    Shaded symbols mark health conditions: Genetic Conditions and Neurological Conditions. Trace each line of descent to see where a condition recurs and where it stops.

Genogram symbols used in this example

Every symbol below follows standard genogram notation. Linked names open the full symbol guide.
SymbolTypeWhat it means
Male (Square)Person SymbolsA square represents a male family member in standard genogram notation.
Female (Circle)Person SymbolsA circle represents a female family member in standard genogram notation.
Deceased (X)Status MarkersAn X drawn through the symbol indicates the person is deceased.
Index Patient (Arrow)Status MarkersAn arrow pointing to a person identifies them as the index patient — the individual who is the focus of the clinical assessment.
MarriageStructural RelationshipsA solid horizontal line connecting two individuals represents a marriage or committed partnership.
Parent-ChildStructural RelationshipsA vertical line descending from a couple line to a child symbol represents a parent-child relationship.
Genetic ConditionsMedical ConditionsShading indicates inherited genetic disorders (sickle cell, hemophilia, cystic fibrosis, etc.).
Neurological ConditionsMedical ConditionsShading indicates neurological disorders (Alzheimer's, Parkinson's, epilepsy, etc.).

Build a genogram like this one

Describe the family in plain words and GenogramAI places the symbols, lines and layout for you. A description like this one is a good starting point:

Example prompt

Create a 3-generation genogram: A three-generation genogram illustrating the autosomal dominant inheritance pattern of Huntington's disease. The grandfather was diagnosed at 45 and died at 58. Mark genetic and neurological conditions on the people who have them. Mark Natalie Grayson as the index person.
  1. 1

    Start from the dashboard

    Sign in to GenogramAI and choose Create with AI (paid plans), or open a blank genogram and use Ask AI (any plan). To start from this exact chart instead, use Open as template.
  2. 2

    Describe your family

    Paste a description like the one above, with your own names, dates, relationships and health history.
  3. 3

    Check and adjust

    Edit people and lines by hand, or ask the AI for one change at a time.
  4. 4

    Export

    Download a PNG on the free plan. PDF and SVG export are on paid plans.

The free plan includes 2 genograms and 5 AI credits a month. See the AI genogram creator for what else it can do.

Related resources

Frequently asked questions

What clinical patterns does the Huntington's Disease Family genogram reveal?

The Huntington's Disease Family genogram maps multigenerational transmission of psychological patterns, emotional dynamics, and relationship structures. Clinicians use it to identify recurring cycles of behavior, attachment styles, and communication patterns that may inform diagnosis and treatment planning in family therapy.

Why is the Huntington's Disease genogram important for medical professionals?

The Huntington's Disease genogram helps medical professionals identify hereditary risk factors by mapping conditions across generations. It supports genetic counseling, preventive care planning, and helps patients understand their family health history for informed decision-making.

What genogram symbols are used in the Huntington's Disease Family example?

This genogram uses Male (Square), Female (Circle), Deceased (X), Index Patient (Arrow), Marriage, Parent-Child, Genetic Conditions and Neurological Conditions. All of them follow standard genogram notation, so the chart reads the same way in any genogram program or textbook.

Can I build a genogram like the Huntington's Disease Family example?

Yes. Open GenogramAI, choose Create with AI on the dashboard (paid plans) or open a blank genogram and use Ask AI in the editor (any plan), and describe the family in plain words: who is in it, how they are related, key dates and the relationships or health conditions you want to show. The AI draws the symbols and lines, and you can then edit by hand or ask for one change at a time. A family of 10 people like this one takes a short paragraph to describe. The free plan includes 2 genograms and 5 AI credits a month, with PNG export.

About this example

This genogram is an educational illustration of genogram notation and family systems concepts. Examples based on public figures use publicly available information. They are not clinical documents.

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