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Talking about the diagnosis
We answer common questions people may have about talking about their diagnosis with their children.
Learn more about:
- Who should tell my children?
- When should I tell my children?
- Where should I tell my children?
- Should I tell my kids together?
- Looking after yourself
- How can I prepare?
- What do children need to know?
- Coping with kids’ reactions
- If your child is diagnosed
- When a sibling has cancer
- When another child has cancer
- Answering key questions
- What words should I use?
- Involving others
- Involving the school or preschool

A cancer diagnosis can be overwhelming. Among the many decisions you need to make will be when, where and how to talk to the children and young people in your life. Try to think of this as a series of conversations that evolve over time, rather than a one-off discussion.
Who should tell my children?
In most cases, it is easier if the information comes from someone who is close to your children. Ideally, that will be the parent who has cancer, with the support of a partner or other close family member.
However, this is not always possible. Another trusted adult close to your children, such as a grandparent, aunt, uncle or friend, may be able to tell them or be present when you tell them. This may be particularly important if you’re a single parent.
You may decide to share the news with the support of a member of your health care team, such as your general practitioner (GP) or hospital social worker.
When should I tell my children?
It’s common to feel unsure about the best time to tell your children. Often there is no right time. You may wonder if you should tell them soon after you’ve found out, or wait until you have more details about test results and treatment. Although it is tempting to delay talking to your kids, try to tell them as soon as you feel you can.
It’s also a good idea to tell children if:
- you think they may have overheard a conversation
- they are scared by adults crying
- they are shocked or confused by physical or emotional changes in the person who has cancer, especially if the person has symptoms such as frequent vomiting, weight loss, hair loss, or is admitted to hospital for immediate treatment
- you notice changes in their behaviour.
Sharing information gradually
It may be hard to know how much information to share, particularly if you are waiting on test results. Your children don’t need to hear everything all at once. If you don’t know what treatment is needed, just say so – but assure your children that as soon as you have more information, you will tell them.
For example, “Dad is in hospital having tests. We’re not sure what’s wrong, but we’ll tell you as soon as we know.”
Encourage open communication
Let children know it’s okay to have questions at any time, such as during treatment, and to talk about how they feel whenever they need.
The most important thing is honesty. Tell the truth, don’t sugar-coat, don’t be too over the top. Admit that it’s not going to be a walk in the park, but you’re not going to die tomorrow. The main thing is to be real.
IZZY, AGED 15
Where should I tell my children?
Many people find that bringing up the topic while doing something else – like walking the dog or washing dishes – can help reduce the tension. This approach may be less intimidating than
sitting down for a formal discussion.
Find a time when you won’t be interrupted and can answer all your children’s questions without
rushing. Ideally, you should tell them when and where they feel able to listen and take in the
news. For example, you may have the discussion on a weekend, so kids have the time to process the
information.
It’s important you choose a place where children feel safe and comfortable to express emotions such as sadness or anger.
Should I tell them together?
If you have more than one child, you may wonder whether you should tell them individually or
together. This will depend on the ages and temperaments of your children. You may need to use
different language because of their ages. If you decide to tell them separately, try to tell them on the same day so no-one has to keep secrets.
Looking after yourself
Telling children and young people about a cancer diagnosis can be confronting and difficult. You may be facing emotional and physical challenges, and you will have to make many decisions, but you don’t have to do this alone.
If you are talking to a child about their diagnosis, or that of a sibling, it’s also important to recognise the intense anxiety that this can cause parents.
- Wait until your initial feeling of shock has eased and you feel better able to manage your response to questions before attempting the conversation.
- Don’t feel that you have to hide your feelings all the time. It is okay for children to see that you are upset at times.
- Talk to a few trusted adults beforehand – this will allow you to express your own feelings and start getting used to the news yourself.
- Make a list of things that other people can do for you. Family and friends are often keen to help out, but usually need guidance on what to do.
- Ask a friend to coordinate offers of help. Apps like Gather my Crew can be used, or in instances of childhood cancer, you may find the KiteCrew app helpful (search for Redkite on the App Store or Google Play).
Learn more about involving the school and others, and learn about support services.
→ READ MORE: How can I prepare?
Explaining Cancer to Kids
Listen to more episodes from our podcast for people affected by cancer
More resources
Joanna Fardell, Senior Research Fellow and Deputy Director, The Behavioural Sciences Unit, School of Clinical Medicine, UNSW Medicine, UNSW, NSW; Dr Diana Adams, Medical Oncologist, Macarthur Cancer Therapy Centre and GenesisCare Campbelltown, NSW; Emma Bowne, 13 11 20 Consultant, Cancer Council SA; Ken Colbert, Consumer; Cara Dahl, Team Leader – Online Support, Cancer Hub, and ACA Registered Counsellor, NSW; Elizabeth Egan, Clinical Nurse Consultant – Oncology, St John of God Subiaco Hospital, WA; Dr Maria Ftanou, Director, Psychosocial Oncology Program, Peter MacCallum Cancer Centre, VIC; Nat Fuss, Senior Clinician, Canteen, SA; Helena Hobson, Senior Social Worker, Cancer Centre, Fiona Stanley Hospital and South Metropolitan Health Service, WA; Nadine Macbeth, Social Work Team Leader, Cancer and Chronic Care, Westmead Hospital, NSW; Damian Ragusa, General Manager – Services and Programs, Camp Quality; The Team at Redkite; Alexandra Wright, Consumer.
We would also like to thank the health professionals, consumers, organisations and editorial teams who have worked on previous editions of this title, and we are grateful to the parents and young people whose real-life stories have added to the richness and relevance of this booklet.
We also thank and acknowledge Dr Paula K Rauch, American Cancer Society, Macmillan Cancer Support, Jessica Watt and Diane McGeachy for permission to use their work as source material.
View the Cancer Council NSW editorial policy.
View all publications or call 13 11 20 for free printed copies.
