Genogram symbol sheet: Complete reference guide for clinical practice

Key takeaways

A genogram symbol sheet is the legend that tells you what every shape and line on a family diagram means.

Squares mean male, circles female, and diamonds non-binary or unknown gender. An X through a shape marks a death.

Solid lines mark marriage, dashed lines mark cohabitation or adoption, and vertical lines connect parents to children.

Shading marks a diagnosed condition, and initials inside a symbol record substance use or a mental health diagnosis.

Practice management software like Pabau keeps the finished genogram in the client record, so family history sits with the chart.

A genogram symbol sheet is the key that tells you what every shape and line on a family diagram means. Squares, circles, dashed lines, and shaded symbols each carry a fixed clinical meaning. Without a shared genogram key, two clinicians can read the same diagram two different ways.

This page sets out the full genogram legend by category: gender notation, relationship lines, emotional patterns, medical conditions, reproductive events, and adoption. Every family genogram symbol below is paired with its meaning and its clinical use, so your notes stay readable across the team.

What is a genogram symbol sheet?

A genogram symbol sheet is a one-page reference listing every standard symbol used to draw a family diagram, with what each one means. The genogram itself is a multi-generational map of relationships, emotional patterns, and health history. The sheet is what keeps everyone reading that map the same way.

Genogram signs look similar to the symbols for family tree diagrams, but they carry clinical information a genealogy chart never does. Shading marks a diagnosed condition. A zigzag line marks conflict. Those genogram symbols and meanings are what make the diagram usable in an assessment.

Standardized notation also reduces ambiguity during assessment and informed consent documentation. When a client sees their genogram during a session, they understand what each symbol means. A colleague reviewing the record months later reads the same language.

The standard genogram symbols most teams use come from the McGoldrick and Gerson framework, published in 1985. It covers gender, relationships, emotional dynamics, medical conditions, pregnancy status, and adoption. Mental health, primary care, nursing, and social work have all adopted it.

Basic genogram symbols: Gender and individual notation

Every genogram starts with the individuals. The basic genogram symbols are plain geometric shapes that record gender and whether the person is living.

These four shapes carry most of a genogram. Trainees learn them first, then add relationship lines and emotional patterns on top.

Genogram relationship symbols and line types

Genogram relationship symbols are the lines drawn between people. They record partnership status, separation, and which generation someone belongs to.

Vertical lines build the generational structure. The oldest generation sits at the top, and each tier below it is younger. Getting these lines right first is what makes the emotional lines readable when you layer them on.

Emotional relationship symbols

Emotional symbols show how family members actually relate, not just who is related to whom. This is the layer that separates a genogram from a family tree.

Emotional lines are often the richest part of the diagram. A therapist reading a completed genogram sees which alliances hold the family together, which relationships are strained, and where a child is being triangulated. That reading shapes the treatment plan.

Medical genogram symbols and health notation

Medical genogram symbols record health history inside the family map. Shading shows that a condition exists, and a label inside the shape says which one.

There is no single diagnosis symbol in the standard set. The two conventions work as a pair: shading tells you a condition exists, and the label tells you which one. A row of shaded squares marked HTN across three generations is a hypertension pattern you can act on at the next appointment.

Pregnancy, reproductive, and perinatal symbols

Pregnancy, loss, and family planning belong in the family history. Standard notation records them without forcing the client to retell the story every review.

Use these symbols sensitively. Ask about a loss once, record it properly, and the client is not asked to repeat it at every review. There is no agreed IVF symbol in the McGoldrick set. Most clinicians write IVF beside the child’s symbol and explain the annotation in the legend.

The adopted genogram symbol and foster care notation

Family membership extends past biology. The adopted genogram symbol, together with foster, step, and guardianship notation, shows how each child joined the family.

In child welfare, family therapy, and trauma-informed work these lines carry weight. A dashed line tells a clinician the relationship is not biological, which changes both the genetic risk picture and the attachment history worth asking about.

How to use a genogram symbol sheet in clinical practice

The sheet earns its place in the session, not in a folder. Here is how therapists, social workers, nurses, and counselors put it to work during intake and afterwards in the record.

1. Have the sheet in front of you before the session starts. Keep a laminated copy on the desk or the file open on a second screen. When a client asks what a shape means, point at the sheet rather than explaining it from memory. A completed genogram example with key beside it helps too, because clients grasp the finished picture faster than the legend.
2. Introduce the genogram in the first few minutes. Once you have rapport, say something close to this: “I’ll ask about your family as we talk, and draw it as we go. These shapes and lines are a standard clinical shorthand, so anyone on your care team can read it.” Then show the sheet and name three symbols. Most clients settle once they see a system rather than freeform notes.
3. Draw it live, with the client watching. Do not prepare it beforehand from the referral letter. Drawing together keeps the client involved and lets patterns surface while you can still ask about them. Use the emotional lines as a prompt: “Would you call that relationship close, distant, or conflictual?” Mark the answer as they give it.
4. Layer the clinical content on top of the factual map. Once names, ages, and relationships are down, add shading for medical conditions and initials for substance use. Put the emotional lines on last. The client watches a family tree turn into a clinical snapshot, which often prompts detail they would not have volunteered.
5. File it with the intake note, and name the standard. Scan or photograph the diagram and attach it to the client record. Then write one line in the note: “Genogram drawn to McGoldrick and Gerson notation. Maternal depression in two aunts, paternal hypertension in father and grandfather.” That sentence keeps the diagram readable for whoever picks up the case, and it meets clinical documentation best practices.

Consistency is the whole point. When everyone on the team draws from the same sheet, the genogram is a clinical instrument rather than one clinician’s private shorthand.

Genogram symbols across disciplines: Social work, nursing, and family therapy

The McGoldrick and Gerson standard is widely adopted, but every discipline adapts it. Knowing the variations saves confusion in a multi-disciplinary team, or when you inherit records from another service.

Mental health and family therapy: Therapists use the full emotional set, because relational dynamics are the treatment target. The genogram gets revisited across sessions as those lines change, so date each version before you file it.

Nursing and medical assessment: Nurses lean on the medical and reproductive notation more than the emotional lines. In obstetric nursing, pregnancy and loss symbols do most of the work. Nursing training often circulates nursing symbol images covering only the medical notation, so emotional lines can be unfamiliar to newer staff.

Social work and child welfare: Adoption, foster care, guardianship, and safety notation come first here. The genogram becomes a map of risk and protective factors. Many agencies add local flags for custody status and safeguarding concerns. A bold outline around a child at risk is one common convention, and it belongs in the legend on every copy.

Genetic counseling: Here the genogram becomes a pedigree. Carrier status, age of onset, and penetrance get added, which are layers well past the basic McGoldrick sheet.

The baseline stays standard. Each discipline adds its own emphasis on top. When you join a new team, ask what local notation they use before you file your first diagram. Consistent client record organization keeps those diagrams readable across shared systems.

Genogram documentation in practice management systems

A paper genogram lives in one folder, in one office. Stored digitally, it sits in the client’s chart next to the intake form, the consent, and every progress note. Practice management software like Pabau keeps all of that on one client record, so you can open the genogram mid-session instead of hunting for it.

Genograms hold sensitive health information about people who are not your client. Digital storage puts that under the same access controls as the rest of the record. That matters for HIPAA in the US and GDPR in the UK and EU, where a filing cabinet offers no audit trail.

Structured digital intake forms collect the factual scaffolding before the appointment. A secure mental health EMR then stores the finished diagram against the client’s timeline. A colleague picking up the case in six months reads the same family history you drew.

Keep family history in the client record

Pabau stores the completed genogram, the intake form, and every progress note on one client record. Your team reads the same family history at every appointment, without chasing a scanned page.

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Conclusion

Consistency is what makes a genogram worth drawing. A diagram any colleague can read six months later earns its place in the record. One drawn from memory, in private shorthand, does not.

Download the sheet, keep it visible during intake, and agree with your team on the handful of local conventions you add on top. Write those conventions into the legend on every diagram you file, including social work clinical notes that reference it.

The payoff builds slowly. After a dozen genograms you start seeing the pattern before the client has finished describing it. Book a demo to see how Pabau keeps genograms, intake forms, and family history on one client record.

Continue your research

Want to streamline family history intake? Digital forms for intake and assessment capture structured family information before the session, so you spend session time on the genogram rather than typing.

Looking for more clinical assessment templates? Psychiatric evaluation template pairs with genogram assessment to build a complete clinical picture during mental health intake.

Need guidance on family therapy documentation? Crisis intervention strategies for clinicians include genogram assessment as a tool for identifying family safety and support systems.

Frequently asked questions