A family genogram is a visual map of your family across multiple generations, showing not just who’s related to whom but also the emotional dynamics, health patterns, and relationship quality between family members. Think of it as a family tree with depth: it captures divorces, conflicts, close bonds, recurring illnesses, and other patterns that a simple list of names and dates would miss. Building one takes some preparation, but the process itself is straightforward once you understand the symbols and structure.
What Makes a Genogram Different From a Family Tree
A family tree tracks lineage: names, birth dates, marriages, and descendants. A genogram does all of that, then adds layers of information about how family members relate to each other emotionally, what health conditions run in the family, and where patterns of behavior repeat across generations. It was originally developed as a clinical tool rooted in Murray Bowen’s family systems theory, where therapists use it to help people see problems in their marriage or family from a broader, more factual perspective. Bowen’s original version was called a “family diagram,” and several of his students later adapted it into what we now call a genogram.
You don’t need to be in therapy to make one. Genograms are used by genetic counselors tracking hereditary disease risk, social workers assessing family dynamics, and individuals who simply want to understand their family more clearly. The process of gathering the information is often as valuable as the finished diagram.
Gather Your Family Information First
Before you draw anything, you need raw data. Start with what you already know, then fill gaps by talking to relatives. The best genograms come from direct conversations, not guesswork. When interviewing family members, cover the basics first: When and where were you born? How many children were in the family, and where were you in the birth order? What did your parents do for a living? What do you remember about your grandparents?
Then go deeper into the material that makes a genogram useful. Ask about relationship quality: Who were you closest to growing up? Were there family members who stopped speaking to each other? What was the marriage like between your parents or grandparents? Ask about health: What did relatives pass away from, and at what age? Were there patterns of addiction, depression, or chronic illness? Ask about major life events: Did anyone serve in a war? Was the family affected by economic hardship, immigration, or displacement?
Keep notes organized by generation. You’ll want at minimum three generations (grandparents, parents, your own), though four or more will reveal patterns more clearly. Record dates of births, deaths, marriages, divorces, and separations as precisely as you can.
Learn the Standard Symbols
Genograms use a consistent set of symbols so that anyone familiar with the system can read your diagram. The core shapes are simple:
- Square: represents a male family member
- Circle: represents a female family member
- Triangle: represents a pregnancy, miscarriage, or abortion
- X through a shape: indicates that person has died (a diagonal cross drawn over the square or circle)
A horizontal line connecting a square and circle represents a marriage or partnership. A single slash through that line means separation; a double slash means divorce. Children hang from the partnership line in birth order, left to right, oldest to youngest.
Relationship Lines
This is where genograms diverge sharply from family trees. Between any two people on the diagram, you can draw lines that describe the emotional quality of their relationship:
- Close: two parallel lines
- Distant: a single dotted line
- Fused (enmeshed): three parallel lines, indicating an overly dependent bond
- Hostile: a zigzag or jagged line
- Cutoff: a line with a break in it, showing family members who have severed contact
- Focused on: an arrow pointing from one person toward another, indicating one person is preoccupied with or overly attentive to the other
You can also combine these. A relationship that is both close and hostile gets both symbols overlapping. These emotional lines are what give a genogram its analytical power, because they make invisible family dynamics visible on paper.
Marking Health and Behavioral Patterns
For medical genograms, you fill in or shade the person’s symbol to indicate a health condition. A common approach is to shade the left half of a shape for one condition and the right half for another, with a key at the bottom of the diagram explaining what each shading means. You can track heart disease, diabetes, cancer, addiction, mental health conditions, or any pattern you’re investigating. Include age of onset and age at death when known, as this helps identify whether a condition tends to appear early or late in your family line.
Draw the Diagram Step by Step
You can start from the top with the oldest known generation and work down, or start at the bottom with your immediate family and build upward. Either approach works. Most people find it easier to begin with themselves and their siblings, then add parents and grandparents above, since that’s the information you’re most confident about.
Place each generation on its own horizontal row. The oldest generation sits at the top of the page, the youngest at the bottom. Within each generation, couples are connected by horizontal lines, and their children drop down from that line vertically. Leave enough space between people, because once you start adding relationship lines and health notations, the diagram gets crowded fast. Use a large sheet of paper or a digital tool if you’re working with more than three generations.
Here’s a practical sequence:
- Step 1: Draw yourself (square or circle) near the bottom center of the page. Add your siblings in birth order to your left and right.
- Step 2: Draw your parents above you, connected by a horizontal partnership line, with a vertical line dropping down to you and your siblings.
- Step 3: Add your parents’ siblings (your aunts and uncles) on either side, along with their spouses and children (your cousins).
- Step 4: Add your grandparents above your parents, repeating the same structure.
- Step 5: Mark any deaths with an X through the symbol, and note the year and cause if known.
- Step 6: Add the emotional relationship lines between key pairs of people.
- Step 7: Shade symbols or add notations for health conditions, addiction, or mental health patterns.
- Step 8: Create a key or legend in one corner of the diagram explaining every symbol, shading, and line type you used.
Handling Complex Family Structures
Real families rarely fit neatly into a single diagram on the first try. Divorces and remarriages are shown by drawing a second partnership line from the relevant person to their new spouse, with a double slash on the original line. Children from different partnerships drop from their respective partnership lines, making half-siblings visually clear.
Adopted children are connected to their adoptive parents with a dashed line instead of a solid one, distinguishing them from biological children. Foster relationships use a similar convention. If you know information about the biological parents, you can include them on the diagram as well, connected to the child by a dotted line, with a note clarifying the relationship.
For families with step-parents, multiple households, or other non-traditional structures, the key is consistency. Decide on your notation system at the beginning and stick with it. As long as your legend explains every symbol, the diagram will be readable.
Digital Tools for Building Genograms
Drawing by hand on a large piece of paper works perfectly well for personal use, and many therapists still prefer it because the physical process of mapping out a family can itself be therapeutic. But digital tools make editing, sharing, and storing genograms much easier, especially for complex families.
GenoPro is one of the most established options, built specifically for genograms and family trees with proper symbol libraries. Lucidchart and Creately are general diagramming tools that offer genogram templates and export options in formats like PDF and SVG. SmartDraw is another professional option with built-in genogram shapes. For a free starting point, Creately offers templates with over 1,000 diagram types, and Genogram Analytics is designed specifically for genograms and ecomaps, making it a solid choice for beginners.
If you’re primarily interested in the genealogy side rather than the clinical relationship mapping, MyHeritage and Legacy Family Tree focus more on discovering and connecting with family members, though they can produce genogram-style outputs.
Reading Patterns in Your Finished Genogram
Once your genogram is complete, step back and look for repeating patterns across generations. These are the insights that make the effort worthwhile. You might notice that heart disease appears in every generation on your father’s side, always before age 60. Or that cutoff relationships repeat: your grandmother stopped speaking to her sister, your mother stopped speaking to hers, and you’re currently estranged from a sibling. You might see that addiction clusters in one branch of the family, or that eldest daughters consistently took on caretaking roles.
These patterns don’t determine your future, but they give you information. A medical genogram showing early-onset diabetes across three generations is something worth sharing with your doctor. A pattern of enmeshed or hostile relationships across generations can help you recognize dynamics you might be unconsciously repeating. The whole point of the genogram, as Bowen’s framework intended, is to see your family system with enough distance and clarity to make more deliberate choices about your own life within it.