Talking to children and teenagers about your cancer

Start small, and be honest about what is known

Children often notice hospital visits, whispered conversations, tiredness or a change in routine before adults explain anything. Without an explanation, they may make up a more frightening one, think they caused the problem or hear an incomplete version from someone else.

Honesty does not mean sharing every scan result, adult worry or possibility at once. It means giving a clear account of what is happening now and acknowledging what you do not yet know. Tell them about a change that affects them before they encounter it where possible.

You may need a little time to process the diagnosis yourself. If a child is already asking questions, you can say: ‘The doctors are doing tests because I am unwell. We do not have all the answers yet. I will explain more when we know.’ Then return to the conversation rather than leaving that promise open-ended.

Agree the message with the adults who will help

Agree on a few facts with the treating team: the diagnosis you can name, the next treatment or test and changes the child is likely to notice. You can ask a nurse, counsellor or social worker to help you find suitable words. Ask someone you trust to sit with you if you would find that supportive.

In a large or extended family, agree on the main message with the adults who regularly care for the child. Different explanations such as ‘nothing is wrong’ and ‘it is very serious’ can be confusing. Use the language the child understands most comfortably; simple familiar words matter more than medical English.

Choose a familiar place and enough time to listen afterwards. Avoid beginning just as the child must leave for school or go to sleep if another time is possible. If siblings hear the news separately, tell them close together and explain why the level of detail may differ.

Have the first conversation, then pause and listen

Start by asking what the child has noticed or heard. Listen for a particular worry before adding information. Use the word cancer if it is the confirmed diagnosis, and name the body part in simple terms. Check whether words such as treatment, operation or scan need explaining. Treatment means care intended to help with the illness; an operation is surgery; a scan makes pictures of the inside of the body. Keep explanations linked to what is actually planned.

An opening might be: ‘I have an illness called cancer in my bowel. The doctors are planning treatment. Some days I may feel tired or need to be at hospital. You did not cause this, and you cannot catch cancer from being with me. We will explain who is looking after you on those days.’ Only describe a treatment plan that has actually been agreed.

Pause. Ask what the child wants to know next. A younger child may need the same explanation several times. End with something concrete: what happens today, who will be there and when you can talk again.

• Nothing the child said, thought or did caused the cancer.
• Ordinary contact, hugs and sharing family life do not pass cancer from one person to another.
• The child is not responsible for curing the illness or keeping every adult happy.
• Questions and feelings are welcome, including sadness, anger or wanting a break from talking.
• Name the adults who will provide care and explain any immediate changes in routine.

Match the explanation to the child

Age is a starting point, not a rule about what a child can understand. Follow their questions, development, language and previous experiences. Read the part that best fits your child; you do not need to work through every age group.

The central message stays the same: what is happening, that it is not their fault, who will look after them and when they can ask more. The amount of detail and the way you explain it can differ between siblings.

Babies, toddlers and preschool children: make the day predictable

Very young children understand changes in care and separation more readily than explanations about disease. Familiar voices, comfort and a reliable caregiver may matter most. A preschool child often needs short, literal sentences about what will happen next.

You could say: ‘I am going to hospital for medicine today. Nana will have lunch with you and bring you home. We can talk after your bath if I am feeling well enough.’ Use the actual arrangement and have an adult explain if it changes. Avoid promising an exact return time that has not been confirmed.

A child may ask the same question, become clingy or temporarily return to earlier behaviours. Keep explanations patient and brief. Use pictures, play or a simple daily chart if helpful. Returning to play soon after the conversation does not mean they have not heard you or do not care.

School-age children: explain and check what they understood

School-age children may want to know where the cancer is, what the treatment does and how it will affect school, friends and family plans. They may connect it with someone else who had cancer. Explain that different cancers and treatments can have different outcomes.

One explanation is: ‘The body is made of tiny parts called cells. Some cells are growing in a way they should not. The doctors are treating those cells. We will tell you what the next step is when they explain it to us.’ Keep the level of detail guided by the child's questions.

Ask the child to tell you what they think will happen next, without making it a test. Correct misunderstandings gently. A question about who will collect them from school is important, even during a serious medical conversation. Ask again about blame: knowing that they did not cause the illness may need repeating.

Teenagers: give information and preserve independence

A teenager may understand a great deal and still find it hard to talk. They might ask detailed questions, say very little or prefer another trusted adult. Offer choices: ‘Would you like the main points now, or would you rather read something reliable and talk later?’ Check back without repeatedly demanding a reaction.

Agree how updates will be shared and ask about exams, friendships, privacy and plans. A teen can help choose practical arrangements that affect them. Helping at home can feel useful, but they should not become the only caregiver, medical interpreter or person responsible for important treatment decisions.

Tell them that going to school, seeing friends and enjoying ordinary life is allowed. Online information may be frightening or unrelated to the parent's cancer. Offer to check it together or take a question to the clinician. General survival figures cannot predict exactly what will happen to their parent.

Expect different reactions and different communication needs

Siblings do not need to react alike. Tears, anger, silence, repeated questions or interest in ordinary activities can all occur. Do not ask one child to demonstrate the right response for another. Make room for individual conversations, including with a child who seems to be coping well.

For a child with learning differences, sensory needs or neurodivergence, use the communication methods they already find helpful. That may mean literal language, a familiar picture schedule, a quieter space, one piece of information at a time or repeating the same words. Ask their usual support professional for advice rather than assuming age alone tells you what they understand.

Families may have different beliefs about discussing illness. You can respect those beliefs while giving a child accurate information. If relatives want to keep everything secret, discuss the risks of the child hearing a frightening fragment and agree on a smaller, truthful explanation.

Explain changes before the child encounters them

Explain likely treatment effects in advance, using information from your team. Not everyone loses hair, vomits or needs an admission. Avoid describing every possible side effect. Focus on changes the child is likely to encounter and who will help manage them.

For example: ‘This medicine may make my hair fall out. That change is from the treatment. You can ask me about it, and you do not have to pretend you have not noticed.’ Or: ‘I may need quiet rest after treatment. You can still tell me about your day; we may do it sitting together instead of going out.’

If a hospital visit is suitable, describe any unfamiliar equipment or appearance first, check visiting arrangements and allow the child to choose whether to come. Arrange a trusted adult who can leave with them if needed. A drawing, short call or voice message is another way to stay connected.

When a child asks, ‘Are you going to die?’

Take the question seriously and first find out what prompted it. A child's question may come from a television story, a relative's death or fear of being left alone. Answer according to what the team has actually explained about your situation. Avoid ‘of course not’ if you cannot know that.

When the outlook is uncertain, you might say: ‘Cancer is a serious illness. The doctors are treating me, and we hope it will help. We do not know everything about the future. I will keep explaining what we learn, and we have adults who will look after you.’ This offers dependable care without promising a medical outcome.

If the team believes the person is approaching the end of life, ask for professional help with a more specific conversation. Use clear words such as dying or died rather than describing death as sleep or going away. Religious or spiritual explanations can sit alongside clear information, in keeping with your family's beliefs.

If a death is becoming likely, explain what may change and who will look after the child. For a visit, goodbye or funeral rite, describe what they might see and hear before asking whether they want to take part. Offer a trusted adult who can stay with them and leave with them if needed. Do not force participation; a drawing, message or quiet remembrance may feel more manageable. Our end-of-life guide can help the adults plan support together.

Make reassurance concrete: who will do what?

Reliable arrangements make reassurance tangible. Keep the plan simple enough that a child can understand their own day. Adults can hold the more detailed arrangements separately. Review it before an admission, treatment cycle or journey, and name a backup if the usual helper is unavailable.

The caregiver toolkit can help adults organise contacts and a handover. The children's conversation worksheet brings together the agreed explanation and everyday arrangements. It is a private planning aid; it does not appoint a legal guardian or authorise someone to make medical decisions.

• Who handles meals, school transport, homework, bedtime and regular activities?
• Where will the child stay, and what familiar belongings or routines should continue?
• Who explains a change if a hospital stay is longer than expected?
• Which trusted adult can the child contact when worried, including outside school hours?
• Who knows the child's own medicines, allergies or additional support needs? Keep these details in the appropriate private care record.
• If the person at home becomes suddenly unwell, which adult should the child call or fetch? Adults remain responsible for the medical emergency plan.

Give school and trusted adults the information they need

A teacher, school counsellor or another trusted adult can notice difficulties, offer practical flexibility and give the child someone outside the family to speak with. Agree what needs to be shared and, where appropriate, include the child's wishes about who knows. A teenager may be particularly concerned about classmates hearing personal information.

A brief message can be enough: ‘There is cancer treatment in the family. We expect some changes to school collection and concentration. Please identify one contact for us and tell us if you notice difficulties.’ You do not need to circulate reports or detailed prognosis information to arrange support.

Ask what help is actually available, particularly around attendance, homework or examinations. Avoid promises about accommodations until the school confirms them. In separated families, try to keep the child's core explanation and practical arrangements consistent, and keep adult disagreements away from them.

Make room for feelings while adults carry the responsibility

You can cry and still have a helpful conversation. Explain it simply: ‘I am upset because this is difficult news. You have not done anything wrong. Another adult is helping me.’ If you need to pause, say when a trusted adult or you will return to the conversation.

Children can show affection, make a card or help with an age-appropriate task. They should not feel they must remain cheerful, monitor every symptom or keep the family together. Avoid messages such as ‘you have to be strong for me’ or ‘do not upset your parent’. Their feelings do not make the cancer better or worse.

Arrange your own adult support for worries about finances, relationships or prognosis. Ask for help with parenting tasks if you are exhausted. Accepting support gives you more room to be a parent; it is not a failure to manage the illness.

Return to the conversation as care changes

After the first discussion, ask occasionally what the child has been thinking about and whether anything they heard was confusing. They may raise an important question in the car or during an ordinary activity rather than at a planned family meeting. You can listen first and arrange a quieter moment if needed.

If treatment changes or cancer returns, explain the new fact and what it means for the coming days. You might say: ‘The latest test shows that this treatment is not controlling the cancer as we hoped. The team is discussing what to do next. Here is what we know about this week.’ Do not turn uncertainty into either a guarantee or a worst-case forecast.

When treatment finishes, explain that recovery and follow-up continue. Tiredness or worry may not disappear immediately. Keep children informed about realistic changes in family life rather than announcing that everything must now return to normal.

When to ask for extra support

A difficult reaction does not automatically mean a mental health disorder. Seek advice if distress is intense, persists, is worsening or interferes with sleeping, eating, school, friendships or everyday activities. A child who is withdrawing, repeatedly refusing school or strongly blaming themselves deserves attention, even if they rarely cry.

Start with the child's usual doctor, a qualified mental health professional, the school counsellor or the oncology team's support service. Describe what has changed and how it is affecting daily life. Ask what help is available locally and who will follow up; do not assume that every hospital has a specialist family service.

A parent or trusted adult can help arrange an appointment with a qualified mental health professional, accompany the young person if they wish, and agree how support will continue at home and school.

If a child or teenager talks about harming themselves, cannot stay safe or is in immediate danger, seek urgent professional help and emergency care as appropriate. A conversation worksheet is not a substitute for assessment. You do not have to wait for the next oncology appointment to ask for help.

Prepare one conversation with this short checklist

Before you start, aim for a few useful messages and a dependable plan for the coming days. You do not have to answer every future question. A truthful “I do not know yet, but I will ask” can be followed by a clear promise about when you will talk again.

Use the children's conversation worksheet as an adult preparation sheet, not a record of a child's private thoughts. You can leave fields blank and use general age or development notes without names, dates of birth, school names or identifying details. Keep completed copies private and share only what is needed.

• Check the confirmed facts with the clinical team and agree what the child needs to know now.
• Choose clear words, a suitable language and one or two practical changes to explain.
• Ask what the child already knows and what they are most worried about.
• Explain that they did not cause the cancer, cannot catch it and are not responsible for curing it.
• Name the care arrangements and the trusted adults they can approach.
• Answer honestly, including ‘I do not know yet’, and note any medical question to ask the team.
• Agree when you will check in again and which adult will update school if needed.
• Ask for professional support if the conversation or the child's needs feel beyond what you can manage alone.

Common questions

Worksheets for this guide

Use only the pages that help. These are optional discussion aids; ask the team to check medical information and keep completed copies securely.

• Talking with children

  Prepare honest, age-appropriate words, practical routines and support for children and teenagers when an adult has cancer.

  Fill in on this deviceDownload fillable PDF (3 pages)

Related reading

• Caregiver toolkit: getting organised
• Cancer caregiving: a practical guide
• Coping with scan anxiety and fear of recurrence
• Life after cancer treatment: follow-up and survivorship