Page last updated: March 2026

The information on this webpage was adapted from Talking to Kids About Cancer (2026 edition). This webpage was last updated in March 2026.

Expert content reviewers:

  • 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

When you first learn of a cancer diagnosis, you may feel shocked and overwhelmed. 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.

Key questions

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 after seeing 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.

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 also 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.”

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.

Where should I tell my children?

Many people find that bringing up the topic of cancer 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.

“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

Should I tell my kids 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.

How can I prepare?

Parents often doubt their ability to find the right words and to answer the questions their children may ask. It’s not a matter of “getting it right”, rather it’s doing the best that you can at a challenging time.

Take the time to plan what you’ll say. Be honest about how you are feeling – it can help children share their feelings too. You may find it helpful to say certain phrases out loud before talking to your children.

For example, you might practise saying “I have cancer” or “Grandma has cancer”. This means you’ve spoken the words and perhaps dealt with some of the anxiety attached to those words before you talk with your kids.

You can also practise the conversation in front of a mirror. This helps set the words in your mind. Even if you practise what to say and you think you know how your kids will respond, be prepared for questions and a wide range of reactions.

Before talking to your children, think about how the conversation might end. You could organise an activity, such as playing a game or going to the park, to help your children settle again.

Older children may prefer some time alone, or you may suggest watching a TV show or movie together. Let your kids know that they can talk to you or another trusted adult any time they have questions or concerns.

The first conversation

The following is a guide to your initial conversation about cancer. The below for suggestions to help you adapt the information to the ages and reactions of your children.

Use words they can understand

You can share the news with a few short sentences explaining what you know so far and what is likely to happen next. Be clear about the name of the cancer, the part of the body affected and how the cancer will be treated.

To help explain cancer terms, you can:

  • use the glossary
  • get hints from websites
  • download Camp Quality’s Kids’ Guide to Cancer app – it provides information about cancer for kids.

For younger children, accept that they may ask the same question several times. Each time you answer, they will absorb a little more information. Older children may be distant and quiet while they process what you’ve told them.

Find out what they already know

Once you have explained the basics, ask your kids what else they want to know, and only answer questions that they ask. Don’t assume children will have the same concerns as you; you can give them more details later if needed.

Ask your children what they know about cancer and clear up any misinformation or myths (e.g. they might think that they can catch cancer or that everyone dies from cancer).

Children get information from various sources, such as school friends and social media, and they may have their own ideas of what having cancer means. Parents can guide their children towards accurate online information.

It’s okay to say “I don’t know”

If you don’t know the answer to a question, it’s fine to say so. Tell your children that you’ll try to find out the answer from the doctor and let them know as soon as possible. Make sure you follow this through.

Tell them what to expect

Your children are likely to want to know what treatment will mean for their day-to-day lives. If you are in hospital, who will drop them to school, make them dinner, take them to after-school activities?

To normalise the process and make sure everyone knows what to expect, you could have a physical calendar with treatment days and other events marked out.

Ask them if they want to tell anyone

Children may want to tell their close friends, their teacher, the whole class – or nobody.

Explain that it’s helpful to share the diagnosis with a few key people, such as their main teacher and the school principal, as well as other important people in their life, such as a music tutor or sports coach.

See below for ideas about talking to the school.

“After Dad told us, the six of us sat around crying and hugging one another. Despite the sadness of the occasion, we actually had a pleasant dinner with lots of laughter. Our lives changed from that day.” Lily, aged 17

When things don’t go to plan

There is no “right” way to tell your children about a cancer diagnosis. If you end up blurting out the news or your child reacts differently to how you expected, don’t worry. There will be many conversations over time, and this is just one of them.

Don’t worry if a conversation doesn’t go exactly as planned – children benefit from your care and honesty over time. Your child may even react in a way that causes hurt or offence.

If this happens, remember that children may not react with feelings of sadness straightaway. They may need time to understand what is being said, and what it means.

Remind your child that they can ask questions or talk to you about their concerns at any time. If you are feeling hurt or offended, try to deal with these feelings away from your child.

Talking to friends, family or a health professional can help you make sense of your feelings.

Offer realistic hope

Tell kids that although cancer can be serious and going through treatment can be challenging, there will be good days, not-so-good days and relatively “normal” days.

Explain that with the help of the treatment teams and doctors, you (or the person with cancer) will be doing everything possible to get well.

Show your love and emotion

Tell your children that you love them. You may show your love through hugging them, comforting them, or other ways of making them feel valuable.

Some parents worry about crying in front of their children. It can be helpful for kids to know that strong feelings such as anger and sadness are normal and expressing them can make people feel better.

Being open with each other about feelings can help your children cope.

Coping with kids' reactions

It's normal for children to have lots of different reactions to a cancer diagnosis. Talking with them about their reactions gives you a chance to discuss ways of managing how they’re feeling.

You will likely have several conversations about cancer as your children’s understanding grows.

If you are concerned that your children may need extra support, see Finding support and information.

Crying

If your children cry, reassure them that feeling sad is a natural reaction. Holding them will help some children feel secure.

Fear

Fear is a natural response to something unknown. Some children may worry that they’re going to be abandoned if something happens to the sick parent.

Ask them what is their biggest worry and reassure them they will always be loved and looked after.

Anger

Children and young people may feel angry about the diagnosis as it means their lives could be disrupted (e.g. they might have to miss a party, help out around the house more, or a planned holiday may have to be cancelled.)

No reaction

Sometimes, children will appear not to have heard the news or do not react.

You may be confused or hurt by this, but a lack of reaction isn’t unusual – often the children are protecting themselves and need some time to process the information.

Remind them that they can talk to you or another trusted adult about it anytime.

If your child is diagnosed

Families often describe the days and weeks after their child’s cancer diagnosis as overwhelming. Among the many confronting decisions they face is how to talk to the child about their illness.

Although the focus of this page is children affected by someone else’s diagnosis, much of the advice will still be relevant.

Children with cancer tend to feel more secure when the adults around them are open – hiding the truth to protect a child may lead to greater anxiety. How much information you share with your child will depend on their age and maturity.

Keep your initial explanations simple and take your cue from your child as to whether they want to know more. The first conversation will be followed by many others, so you will have the opportunity to give more detail as the need arises.

Include your child in discussions about their treatment and encourage them to ask questions. Someone from the paediatric oncology team will be able to provide guidance and assist you with these discussions.

For younger children, many hospitals have therapists (called child life therapists) who teach children strategies to manage their illness and can help explain the diagnosis and treatment.

If you have a child with cancer, get in touch with Cancer Hub. Children and teenagers will respond to their cancer diagnosis in different ways. Fear, anger or sadness are all common reactions.

Remember that your child’s hospital team is there to support the family as well. The social worker or cancer nurse specialist can let you know what support services are available, particularly if you need to travel long distances for treatment.

Some organisations have developed resources for parents of children diagnosed with cancer, including:

Older children and teenagers may want to seek out information themselves.

Support from Cancer Hub

Cancer Hub is a digital one-stop shop to help families (with children aged up to 25 years) access practical and emotional support.

Call 1800 431 312 or visit their website to connect with support from Camp Quality, Canteen and Redkite.

Camp Quality

Supports children living with cancer and their families, as well as children who have a parent or carer with cancer.

The Camp Quality Kids’ Guide to Cancer website and app is aimed at children aged up to 15 years.

Camp Quality also offers free school programs, recreation programs, camps and family experiences, as well as a 5-part web series explaining the cancer journey.

Visit Camp Quality website

Canteen

Helps young people aged 12–25 who are dealing with their own or a close family member’s cancer.

Young people can connect with others through the Canteen Connect app; get face-to-face, phone or online counselling; get specialist, in-hospital treatment; and attend programs, camps and gatherings.

Visit Canteen website

Redkite

Provides practical, emotional and financial support for families who have a child aged 0–18 years diagnosed with cancer.

Many services are delivered online through the myRedkite portal or by Redkite’s team of specialised paediatric oncology social workers.

The Redkite Book Club has more than 80 books about childhood cancer suitable for a range of readers, from young children to teenagers. You can order these books for free via the myRedkite portal.

Redkite also has a podcast series called Kids Cancer Conversations

Visit Redkite

When a sibling has cancer

The siblings of children with cancer sometimes feel forgotten in the midst of a diagnosis. Parental attention is suddenly shifted, and daily routines, family roles and family responsibilities change.

Along with sadness, fear and anxiety, siblings may struggle with more complex emotions such as guilt, jealousy, resentment and anger.

With so much focus on their brother or sister, they may feel that their needs do not deserve to be met and that they are not allowed to complain.

Many children take on caring roles, whether they are asked to or not. Some kids may feel self-conscious about their family being different from others. Some may be reluctant to tell their friends and teachers about the situation at home.

If cancer changes how their brother or sister looks, they may feel embarrassed and shy away from being seen with their sibling. You can help your children adjust to the changes in your family by talking openly.

The tips below will help, but your kids may also be reassured to know the following:

  • It’s not their fault.
  • They can support their brother or sister by visiting the hospital and having regular contact.
  • It’s okay to have fun.
  • Feeling cross is normal.
  • They are loved and will always be looked after

“We wanted all the kids to feel involved with Leo’s treatment – we said, ‘You are part of the team, you are part of this.’ The hospital became part of our family life.” Genevieve, mother of four children aged 3, 5, 10 and 14

When another child has cancer

In most cases, children will first learn about cancer when an adult in their life has been affected (e.g. a grandparent, aunt or teacher).

So it can be confusing and frightening for them if a child (e.g. a friend, sibling or cousin) is diagnosed with cancer.

  • Causes of cancer – Let your child know that there’s nothing anyone did to cause the cancer, nor does a child get cancer because of behaviour or a minor accident like a bump on the head. Nobody did anything to cause the cancer.
  • It’s not contagious – Children need to feel safe around the child with cancer. Tell them that cancer can’t be passed on to other people. If the sick child is in isolation or unable to share food with other children, explain that this is to protect the child from infection, not to protect everyone else from the cancer.
  • Most children get better – Like adults, children may worry that cancer means their friend will die. Reassure children that although cancer is a serious disease, the overall survival rate for children is high (about 87%). This can vary depending on the diagnosis.
  • Expect change – If it’s a child’s friend, explain that things might change. For example, their friend may feel too unwell to play, may be away from school a lot or may have physical changes (e.g. lose hair or need to use a wheelchair). Encourage your child to focus on what hasn’t changed – their friend’s personality and their friendship.
  • Visit the hospital if possible – It can be confusing for your child if the person with cancer disappears from their life after diagnosis. They may imagine the worst. It may be helpful to take your child to visit their friend in hospital, but first check with the friend’s parents and with the hospital.
  • Keep in touch – If a hospital visit is not possible, there are other ways for your child to maintain the relationship with their friend. Younger children might like to make a card or a decoration for the hospital room, or you could phone, text or make video calls.
  • Encourage expression of feelings – Let your child know that it’s okay to have lots of different emotions and that you have them too.

Busting the myths

There are many common fears and misconceptions around talking with children about cancer. Listed below are a few myths (and why they are incorrect):

  • “I have to get it right”: There is no “right” time or way to talk to your children about cancer; every family will find their own way to have these conversations.
  • “Finding out I have cancer will traumatise my children”: Some children may have strong reactions to hearing that their parent has cancer, but this does not necessarily mean they are not coping (see page 20.
  • “As a parent, I have to appear to know what I am doing at all times, and be in control”: It’s okay to be sad in front of your children, and to not know all the answers.
  • “Coping with cancer means that my children will always be happy and look on the bright side”: Sadness, anger and fear are all normal reactions. See Finding Support and Information for warning signs that your child may need some extra support.
  • “There will be one big conversation where I break the news of cancer”: While the first discussion is likely to be difficult, this will be the first of a series of conversations where your children can ask questions and explore their feelings and responses to the news.

Answering common questions

Q: What is cancer?

A: For younger children: “Cancer is a disease that happens when bad cells stop the good cells from doing their job. These bad cells can grow into a lump and can spread to other parts of the body.”

A: For older children and teenagers: “Cancer is the name for more than 200 diseases when abnormal cells grow and rapidly divide. These cells usually develop into a lump called a tumour or they may spread through the blood. Cancer may spread to other parts of the body.”

Q: Are you going to die?

This is the question that most parents fear, but often it doesn’t mean what you think. For example, younger children may really mean “Who is going to look after me?” Older children may be wondering, “Can we still go away during the school holidays?”

You can explain that the treatment you are receiving is the result of many years of research and that treatments are improving all the time.

If your child knows someone who has died of cancer, let them know that there are many different types of cancer and everyone responds differently.

Children and teenagers often have many questions about death and dying. Cancer commonly prompts them to reflect on their own life and the lives of those they care about.

A: “We don’t expect that to happen, but I will probably be sick for a while. I am doing everything I can to be well. Sometimes it makes me sad, and I wonder if you get sad too.”

For ways to approach end-of-life discussions, see Talking about advanced cancer.

Q: Was it my fault?

Some children may ask you directly if they caused the cancer, while others worry in silence, so it’s best to discuss the issue.

A: “It’s no-one’s fault I have cancer. Scientists don’t know exactly why some people get cancer, but they do know that it isn’t anything you did or said that made me sick.”

Q: Do I have to tell other people about it?

If you’re planning to inform teachers, the school counsellor or principal, talk to your kids first.

Teenagers and even younger children may not want the school to know, so explain the benefits of telling the school and then chat about the best way to approach the discussion. Ask if your teenagers want to be involved in these conversations.

A: “You can tell your friends if you want to, but you don’t have to. People we know may talk about the diagnosis, so your friends might hear even if you don’t tell them. Many people find it helps to talk about the things that are on their mind.”

“Sometimes people talk about illness but they don’t know the full story. If the kids at school are talking about the cancer, let me know so we can discuss any things that they have got wrong.”

Q: Can I catch cancer?

A: “You can’t catch cancer like you can catch a cold by being around someone who has it, so it’s okay to hug or kiss me even though I’m sick.”

“Cancer can spread through the body of a person with cancer, but it can’t spread to another person.”

Q: Who will look after me?

A: “We will try to keep things as normal as possible, but sometimes I may have to ask Dad/Mum/Grandpa to help out.”

Q: Is there anything I can do to help?

Letting kids know that they can help may make them feel useful, but it’s important that they don’t feel overwhelmed with responsibility. Some parents may feel hurt if their children don’t ask how they can help, but it’s common for children not to think to offer.

A: “Yes, there are lots of things you can do to help. We will work out what those things can be, and what will make things easier for everyone. Is there something in particular you would like to do?”

“Some help around the house would be good, but it’s important that you keep up with your schoolwork and you have some time for fun and for seeing your friends.”

“It is often helpful to talk to other parents who have or have had kids at a similar age to yours when diagnosed. Talking to another parent who has travelled the same road can be reassuring.” Mira, mother of two children aged 3 and 12

What words should I use?

It’s often hard to find the words to start or continue a conversation. The suggestions below may help you work out what you want to say.

Although these are grouped by age, you may find that the ideas in a younger or older age bracket work for your child. See Talking about treatment for tips on how to answer specific questions.

  Infants, toddlers and preschoolers Younger children
Older children and teenagers
About cancer

“I am sick with something called cancer. The doctor is giving me medicine to help me get better. The medicine might make me feel sick or tired some days, but I might feel fine on other days.”

“Mummy is sick and needs to go to hospital to get better. You can visit her soon.”

“You know that Mum has been sick a lot lately. The doctors told us today that the tests show she has cancer. The good news is that she has an excellent chance of getting better.”

“Do you know what cancer is? Cancer is a disease of the body that can be in different places for different people.

“The doctors say Dad has a problem in his blood – it’s an illness called Hodgkin lymphoma. That’s why he’s been very tired lately. Dad will have treatment to help him get better.”

“Lots of people get cancer; we don’t usually know why. Most people with this type of cancer get better and we expect I will get better too.”

To check knowledge of cancer

“Sometimes children worry that they thought or did something to cause cancer. No-one can make people get cancer, and we can’t wish it away either.”

“We can still have lots of kisses and hugs – you cannot catch cancer from me.”

“Even though your friends at school might say that cancer is really bad and I will get very sick, they don’t know everything about this cancer. I will tell you what I know about my cancer.”

“There are many types of cancer and they’re all treated differently. Even though Uncle Bob had cancer, it might not be the same for me.”

“The doctor doesn’t know why I got cancer. It doesn’t mean that you’ll get cancer too.”

To explain changes and offer assurance

“Mummy needs to go to the hospital every day for a few weeks, so Daddy will be taking you to preschool/ school instead.”

“Grandpa is sick so we won’t see him for a while. He loves your pictures, so maybe you can draw some for me to take to hospital.”

“Mummy has to stay in bed a lot and isn’t able to play, but she can still cuddle you and read with you. Aunty will be here to help us.”

“Even though things might change a bit at home, you’ll still be able to go to tennis lessons while Dad is having his treatment.”

“Mum is going to be busy helping Grandma after she comes out of hospital. There are ways we can all help out, but mostly things will stay the same for you.”

“Things will be different while Dad’s having treatment, and when I can’t drive you to soccer training, Annie will drive you instead.”

“After my operation, there are a few things I won’t be able to do for a while, like lifting things and driving. Our friends are going to help by dropping off meals.”

“If you have any questions or worries, you can come and talk to me. It’s okay if you want to talk to someone else too.”

Involving others

There are several ways to ensure kids hear a consistent message from people who are involved in their lives.

  • Tell key adults – Share the diagnosis with other people who talk with your kids (grandparents, friends, teachers, babysitters) and tell them what you plan to say to your children so that you all communicate the same message.
  • Talk to other people who have cancer – Often the best support and ideas come from people who’ve already been there. You’ll realise you’re not alone and you can ask them how they handled things (see Finding support and information).
  • Ask a professional – It may also be helpful to get some tips from a professional, such as an oncology nurse or social worker, psychologist or other health professionals at the hospital. They are used to a range of reactions and situations, and might have some tips for coping.

“Sometimes I felt alone when my dad was sick. None of my friends really understood what we were going through at home, or that the problem could go on for so long.” Adele, aged 16

Involving the school or preschool

Many parents wonder if they should tell the school when someone in the family has been diagnosed with cancer. If things are unsettled at home, school can be a place where kids can be themselves with their friends and carry on life as normal.

When the school is aware of the situation at home, staff may be more understanding of behaviour changes and can provide support. In fact, school staff are often the first to notice shifts in a child’s behaviour that may indicate distress.

Ask the school to let you know of any changes in behaviour or academic performance.

Ideally, a particular staff member, such as the class teacher, student wellbeing coordinator or year adviser, can provide a regular point of contact with you and your children.

However, request that teachers don’t probe – some well-meaning staff members might misinterpret your child’s behaviour and unintentionally make them feel uncomfortable.

For example, a teacher may ask if your child is okay when they’re happily sitting on their own.

A cancer diagnosis in the family can also have an impact on academic performance, so the student may be entitled to special provisions. This can be particularly important in the final years of high school.

Some states and territories have schemes to help a student enter tertiary study if they have experienced long-term educational disadvantage because of their or a family member’s cancer diagnosis.

If you feel concerned about your child, ask your child’s teacher or principal whether your child could see the school counsellor.

Sometimes other children can be thoughtless in their comments. Talk to your child about how other children are reacting and encourage them to tell you if they have any concerns. You can raise these issues with teachers if needed.

Ask a parent of one of your child’s friends to help you keep track of school notes, excursions, homework and other events.

When life is disrupted at home, children may feel doubly hurt if they miss out on an event or activity at school because a note goes missing.

Support services for schools

You may want to let the school know about services that provide school visits and information about cancer.

For primary school and preschool children, Camp Quality offers a cancer education program, featuring puppets, to help young students learn about cancer in an age-appropriate way.

Camp Quality’s new web series Bloom is also available online, and suitable for 12–16 year olds, with classroom resources attached. 

“Dad just told us straight: ‘I have cancer.’ I just thought, ‘He’s going to die.’ Mum tried to sugar-coat it and said there were things they could do, but I was thinking the worst. I wanted to run. I wanted to do something. I thought if I could just do something, that would change it. I joined Canteen the next day.” Izzy, aged 15

Talking to Kids About Cancer

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