Genogram example · Medical & hereditary
Hemophilia Inheritance Pattern
Quick answer
At a glance
| This example | |
|---|---|
| Generations | 3 |
| Family members | 11 (6 male, 5 female) |
| Birth years | 1932 to 2000 |
| Deceased | 2 |
| Index person | Marcus Brennan |
| Conditions marked | Genetic Conditions |
| Category | Medical & hereditary |
| Tags | Medical, Educational |
About this genogram
A three-generation genogram illustrating the X-linked recessive inheritance pattern of hemophilia A. The maternal grandmother was an obligate carrier. The mother is a carrier, and among her children one son has hemophilia A, another son is unaffected, and a daughter is a carrier. Factor VIII activity levels and clotting profiles are documented throughout.
Medical analysis
Overview
This 3-generation genogram maps 11 family members with birth years spanning from 1932 to 2000, comprising 6 males and 5 females (2 deceased). The genogram tracks 1 medical/psychological condition category. The index patient is Marcus Brennan (b. 1995), graphic designer (remote).
Across 3 generations, the Hemophilia Inheritance Pattern family demonstrates hereditary risk patterns. The founding generation includes Bernard, Irene, Howard, with 1 member presenting health conditions.
Health conditions
Medical and psychological conditions are documented in 4 of 11 family members (36%). Genetic conditions appear in 4 members (Irene, Angela, Marcus...), affecting 3 females and 1 male. The multigenerational prevalence of genetic 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 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 Hemophilia Inheritance Pattern genogram?
- 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 6 males and 5 females across 3 generations. - 2
Check the status markers
Markers on a symbol add facts about that person: Deceased (X) and Index Patient (Arrow). 2 people are marked deceased. The index person, the focus of the assessment, is Marcus Brennan. - 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
Read the shading
Shaded symbols mark health conditions: Genetic Conditions. Trace each line of descent to see where a condition recurs and where it stops.
Genogram symbols used in this example
| Symbol | Type | What it means |
|---|---|---|
| Male (Square) | Person Symbols | A square represents a male family member in standard genogram notation. |
| Female (Circle) | Person Symbols | A circle represents a female family member in standard genogram notation. |
| Deceased (X) | Status Markers | An X drawn through the symbol indicates the person is deceased. |
| Index Patient (Arrow) | Status Markers | An arrow pointing to a person identifies them as the index patient — the individual who is the focus of the clinical assessment. |
| Marriage | Structural Relationships | A solid horizontal line connecting two individuals represents a marriage or committed partnership. |
| Parent-Child | Structural Relationships | A vertical line descending from a couple line to a child symbol represents a parent-child relationship. |
| Genetic Conditions | Medical Conditions | Shading indicates inherited genetic disorders (sickle cell, hemophilia, cystic fibrosis, etc.). |
Build a genogram like this one
Example prompt
- 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
Describe your family
Paste a description like the one above, with your own names, dates, relationships and health history. - 3
Check and adjust
Edit people and lines by hand, or ask the AI for one change at a time. - 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
- See our comprehensive guide to medical genograms for tracking hereditary conditions.
- Discover how genograms in family medicine help physicians identify inherited risk factors.
- Learn how genograms for genetic counseling support hereditary risk assessment.
- The deceased symbol (X through the shape) marks family members who have passed away.
- The marriage symbol connects partnered individuals in this genogram.
Frequently asked questions
What clinical patterns does the Hemophilia Inheritance Pattern genogram reveal?
The Hemophilia Inheritance Pattern 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 Hemophilia Inheritance Pattern genogram important for medical professionals?
The Hemophilia Inheritance Pattern 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 Hemophilia Inheritance Pattern example?
This genogram uses Male (Square), Female (Circle), Deceased (X), Index Patient (Arrow), Marriage, Parent-Child and Genetic 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 Hemophilia Inheritance Pattern 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 11 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
