Siblings of seriously ill children often quietly carry jealousy, fear and guilt. Read practical, age-appropriate ways to help the sibling feel seen again.
When a child receives a serious diagnosis, the family's whole calendar is rebuilt around hospital appointments, test results and treatment days. The mother often stays at the hospital as the child's companion, the father shuttles between work and the hospital, and the home is left for a while in the care of a grandmother or an aunt. Amid all this intensity, the other child at home, the sibling of the ill child, can quietly end up on the sidelines. Their homework goes unchecked, nobody can come to their school performance, their birthday is postponed. Many parents stop one day and think, "I am neglecting my other child", and this thought creates enormous guilt. Siblings of seriously ill children carry feelings that are easy to miss. In this article I look at what the sibling goes through, how this differs by age and how the family can help them feel seen, even with limited time and energy.
What Do Siblings of Seriously Ill Children Feel?
The sibling's feelings are often contradictory, and this contradiction confuses them too. On the one hand they love their ill brother or sister and are frightened for them; on the other they feel jealous and angry, and then feel bad about having these feelings.
Commonly encountered feelings include:
- Fear: Being afraid that their sibling will die, that they themselves will fall ill, that the family will fall apart.
- Jealousy: Seeing the presents, attention and visitors that go to the ill sibling and thinking, "I wish I were ill too."
- Anger: Being cross that plans are cancelled and that their parents are always tired and tense.
- Guilt: Believing that the words "I wish you'd never been born", said during a quarrel, caused the illness, or thinking they must be a bad person for feeling jealous.
- Loneliness: Feeling that nobody at home asks about their day and that their own problems are considered "small".
- Embarrassment: Shrinking from questions at school about their sibling's different appearance or illness.
None of these feelings mean the sibling is "bad" or "selfish". Children perceive the world through their own needs; less attention is a real loss for them. I discussed the general dynamics of jealousy between siblings in the article on sibling jealousy; when illness is involved, these feelings become more complex and quieter.
The Cost of Being the "Good Child"
Some siblings show their feelings: they cry, have tantrums, run into problems at school. Others do the exact opposite and try to become the "perfect child" so as not to add to the family's troubles. They never complain, their marks are high, they help at home and, when asked, they always say, "I'm fine."
Seen from outside, this child is praised: "Never any trouble, bless him, so mature." Yet this compliance is often a way of suppressing their own needs. The child may learn that they can only earn love and acceptance by being problem-free. Years later, as an adult, this person may become someone who finds it hard to ask for help and always puts other people's needs first.
Let's say a nine-year-old boy did not complain once during the months his younger sister was having treatment. His school report was full of top marks, and in the evenings he helped his grandmother set the table. One day on the school bus, when a friend asked, "Doesn't your mum ever come?", he suddenly burst into tears. Nobody at home had noticed that he too had been missing her and feeling frightened for months, because he had never shown it, so as not to upset anyone.
For this reason it is important to see the remark "Our eldest never causes any trouble" not as reassuring news but as a sign that needs attention. The quiet sibling needs attention at least as much as the noisy one.
Siblings of Seriously Ill Children at Different Ages
The sibling's age determines what they understand, what they fear and how they express their feelings.
The preschool years (roughly ages 3–6)
A child of this age cannot grasp illness in abstract terms; but they feel their mother's absence and the tension at home very clearly. Regression may appear, such as wetting again, talking like a baby, sleep problems or clinginess. "Magical thinking" is common at this age; the child may believe that their own thoughts or naughtiness made their sibling ill. It is very important to tell them clearly, "Your brother's illness isn't because of you; it's nobody's fault." Play is the language through which children of this age express themselves; playing doctors with a toy hospital set or games in which a doll gives an injection to a sibling are natural parts of the process.
School age (roughly ages 7–12)
A school-age child asks more questions and wants concrete information: "What is the illness called?", "Is it catching?", "When is she coming home?" Unanswered questions can lead the child to gather wrong information from the internet or from friends. In this period there may be a drop in school performance, physical complaints such as stomach aches or headaches, and angry outbursts. Getting in touch with the teacher helps ensure the child is understood at school as well.
The teenage sibling
Teenage siblings generally understand the situation better, but rather than sharing their feelings with the family they may turn to their friends or to social media. Some teenagers take on looking after their siblings, household chores and even an emotional support role in order to share the family's burden. This contribution is valuable; but the young person's preparation for the LGS or YKS (Turkey's national high-school and university entrance exams), their friendships and their own life should not be buried under these responsibilities. Other young people start to stay away from home and avoid going to the hospital; this is often not indifference but an attempt to keep their distance from a pain they cannot cope with.
At whatever age, for the sibling of a seriously ill child, not knowing is often more frightening than the truth itself. Conversations whispered behind closed doors, rushing to the hospital in the middle of the night and half-sentences overheard on the phone set the child's imagination to work. That is why the basic principle is the same at every age: short, honest, age-appropriate information and a door that stays open to feelings.
What to Say, and What Not to Say, to the Sibling of a Seriously Ill Child
The sentences below are fictional examples; the aim is to see the difference between attitudes that open the door to the sibling's world and those that close it.
Sentences you might do well to avoid:
- "Your brother is lying in hospital and this is what you're worried about?" (It makes the child feel their own problem is worthless.)
- "You're the big one, you have to be understanding." (It loads the child with a maturity beyond their years.)
- "Don't cry, your mother is upset enough already." (It teaches them to hide their feelings.)
- "Once your sister gets better, everything will be the way it was." (It makes a promise that is not certain and prolongs the feeling of waiting.)
Sentences you could try saying:
- "I've only been able to spend a little time with you lately; I can see that, and I've missed you."
- "It's normal to be angry with your brother or jealous of him; you can tell me about it."
- "Let's set aside half an hour today just for the two of us. What would you like to do?"
- "If there's something you're wondering about, ask me; and I'll tell you if I don't know."
When the child asks a question, do not hesitate to say you do not know. Saying "I don't know that either; shall we ask the doctor together?" sets an example for the child of both honesty and coping with uncertainty.
For the sibling of a seriously ill child, what matters most is to be seen, even in the middle of the illness, by their own name and with their own day.
Practical Tips for Helping the Sibling Feel Seen With Limited Time
Parents often ask, "I already have no time, how am I supposed to manage?" The aim is not to divide everything equally, but to create small, steady and reliable islands in the sibling's life.
- Short but regular one-to-one time: Fifteen minutes every day, without phones, set aside for that child alone, can leave a deeper mark than big outings made only now and then.
- Voice messages or video calls from the hospital: When the parent staying at the hospital makes a short call in the evenings and asks, "What happened at school today?", the bond stays alive.
- Protect routines: Let school, after-school classes, meeting friends and bedtimes continue as far as possible. Routine makes the child feel that their world has not completely fallen apart.
- Brief the adults who are looking after them: If a grandmother, aunt or neighbour is caring for the child, they should know how things have been explained to the child and what questions the child might ask; contradictory information from different people confuses children.
- Include the sibling in the process: Where appropriate, taking them on a hospital visit, drawing a picture for their sibling, recording a video or choosing a present for them helps the child feel part of the family rather than shut out.
- Watch the balance of presents: When presents arrive for the ill child, setting aside something small for the sibling too, and asking visitors not to forget the sibling, softens jealousy.
- Talk to the teacher: If the teacher knows about the situation at home, they can respond with more understanding to a drop in schoolwork or to daydreaming.
It also helps for partners to share the tasks concerning the sibling. For example, the parent who stays at the hospital can swap places at weekends with the parent at home with the other child; that way the sibling keeps up their bond with both parents. I have discussed how a child's illness can affect the relationship between partners in the article on couples with a seriously ill child.
Parental Guilt
Parents who think they are "neglecting" the sibling are often very harsh with themselves. Yet in this period it is not realistic to give equal time and energy to both children. Having one child in a life-saving course of treatment temporarily changes priorities.
When it is functional, guilt is a signal: a way of saying, "This child of mine needs me too." But when it turns into constant self-blame, it leaves the parent with fewer resources for both the ill child and the other child. Saying to yourself, "I'm not trying to be a perfect parent, just a good enough one" can ease this burden. It is also important for the sibling to come to understand, over time, that their parents did not love them any less; they were simply going through a very difficult period. This understanding can only develop when the difficulty is talked about openly.
Even when treatment ends or the ill child comes home, the sibling's feelings may not settle straight away. While everyone is expected to be happy because the family is relieved, the sibling may start to show the anger or sadness that has built up during this time. This is often a sign that they now feel safe enough to bring their feelings out; rather than being surprised, it is important to make room for these feelings too.
When Should You Seek Professional Support?
It is to be expected that the sibling will be sad, angry or go backwards for a while during the illness. However, the following situations suggest that consulting a child and adolescent mental health professional may be helpful:
- Marked changes in sleep, appetite or school performance lasting for weeks
- Frequently recurring physical complaints such as stomach aches or headaches (a paediatrician should be consulted first to rule out a medical cause)
- Withdrawing completely from friends and activities they used to enjoy
- Constant angry outbursts or aggressive behaviour
- The "perfect child" role becoming ever heavier, with no feelings shown at all
- Risky behaviour, substance use or self-harm in a teenage sibling
When there is self-harm or talk of wanting to die, take it seriously; in an emergency, call 112 (emergency services).
How Are Siblings of Seriously Ill Children Supported in Therapy?
In work with young children, play is a fundamental tool. In child-centred play therapy, the child can express the fears, jealousy and anger they cannot put into words through toys, figures and drawings. In the playroom the child has a safe, predictable time set aside for them alone; this in itself can be healing for a sibling who has been left in the shadow of the illness. You can find more information on the child and play therapy page.
With school-age children and teenagers, the focus can be on naming feelings, working with guilty thoughts and correcting mistaken beliefs about the illness. In sessions with parents, the topics are communication with the sibling, how to use limited time and how the parents can cope with their own guilt. Sometimes subjects that cannot be talked about within the family can be opened up more safely with a professional present.
Frequently Asked Questions
Will visiting their ill sibling in hospital frighten the child?
This depends on the child's age and personality and on the patient's condition. Explaining simply beforehand what they will see, keeping the visit short and not forcing the child if they do not want to go is generally a good approach. It is also important to ask the treatment team about hospital rules and whether a visit is appropriate.
How much should I tell the sibling about how serious the illness is?
Short, honest explanations suited to their age are the safest way. A child wants to learn as much as they ask about; following their questions makes it easier for you to answer without overloading them and without hiding the truth.
The sibling said about their ill brother, "I wish he'd die." What should I do?
These words can shake parents badly; but most often they are not a real wish but an expression of intense anger and jealousy. Staying calm, naming the underlying feeling ("You're very angry and you feel forgotten") and showing them that they can express these feelings in another way is more helpful than punishing them.
How much should I tell the sibling's teacher at school?
Giving enough basic information for the teacher to understand the child's needs is usually sufficient. Telling the child that their teacher knows about the situation, and asking their opinion on how much will be shared in class, gives them a sense of security.
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Eda Erkan Alapala
Klinik Psikolog. İstanbul Kent Üniversitesi Klinik Psikoloji Tezli Yüksek Lisans mezunu; bilişsel davranışçı terapi, çocuk merkezli oyun terapisi ve çocuk-ergen psikoterapisi alanlarında eğitimlerini tamamlamıştır.
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