There are moments in healthcare that change the way you understand the world, not just as a clinician, but as a person. But for many families, that understanding does not begin in a hospital or a training program. It begins in the quiet, disorienting space where life first shifts: when something feels wrong, when answers are not yet clear, when uncertainty settles into everyday routines.

Cancer is all too familiar to me and my family. I lost two cousins: one to a brain tumor, another to a blood cancer. Later, in high school, I lost my sister to melanoma. Like many families, ours has also lived with the quieter, ongoing presence of cancer through other diagnoses—breast and prostate cancer—subtle threads that influence how we think about the future, about risk, and about what is possible.

These experiences are part of my story, but they are not the center of what I want to say. What they gave me was a way of seeing—an understanding that illness is never contained to one person. It moves through families. It changes how people relate to one another, how they make sense of time, how they carry both fear and hope at the same time. 

And within that shared experience, siblings often stand in a place that is deeply felt but rarely centered.

When a child is diagnosed with cancer, the focus rightly turns to their care; the urgency of treatment, the complexity of decisions, the need to hold everything together. Caregivers are asked to do the impossible: to navigate medical systems, absorb information, make decisions, and remain a steady presence for their child. But around them are other children—siblings—who are living this experience too, in ways that are quieter, less visible, but no less real.

Siblings notice everything. They notice the shift in routines, the missed dinners, the packed hospital bags by the door. They notice the way conversations pause when they walk into the room, the way adults lower their voices, the way plans change without explanation. Even when words are softened or withheld to protect them, they feel the change. They understand, in ways that are often intuitive rather than explicit, that something serious is happening.

In many families, there is a natural instinct to shield siblings from the hardest truths. But children are remarkably perceptive. When they are left to fill in the gaps on their own, their imaginations often take them to places that are more frightening than reality. What is meant as protection can sometimes deepen uncertainty, leaving siblings alone with questions they do not know how to ask.

At the same time, family life reorganizes itself around illness. Time, attention, and emotional energy are pulled toward the child who is sick. This is necessary. It is an act of care and love. And for siblings, it can feel like the ground has shifted. The small, everyday moments that once provided stability—shared routines, casual conversations, predictable rhythms—become less certain or disappear altogether.

Many siblings respond by adapting. They become more independent. They take on responsibilities without being asked. They try to make things easier for everyone else. From the outside, this can look like strength, and it often is. But it can also reflect something quieter: a decision, sometimes unspoken even to themselves, to take up less space. To not add to what already feels like too much.

Emotionally, the experience can be complicated. There is love and worry for their sibling. There is fear, confusion, and a longing for things to go back to how they were. And alongside that, there can be feelings that are harder to name—jealousy of the attention focused elsewhere, guilt for having that feeling, moments of frustration, or even resentment. These emotions are deeply human, but many siblings carry them in silence, believing they should not be felt, or at least not expressed.

Siblings are also growing up in the midst of all of this. They are forming their sense of who they are, how relationships work, and what the world expects of them. Illness can shape that process in lasting ways. It can bring an early awareness of vulnerability; that life can change quickly, that people they love can be at risk. For some, this deepens empathy and connection. For others, it can create a sense of instability that lingers long after treatment ends.

There is also a kind of grief that siblings may carry, even when no one names it. It may be a grief for the relationship they once had with their brother or sister, before it became intertwined with hospital visits and medical routines. It may be a grief for the attention and ease that once existed in their family, for the predictability of daily life, for the version of childhood that now feels out of reach. This grief does not always wait for an outcome. It often begins at the moment of diagnosis, in the recognition that something fundamental has changed.

For many families, serious illness means keeping track of appointments and decisions while trying to hold everything else together. There isn’t much room to sort through experience or feelings—only enough space to put one foot in front of another. The adults do their best to stay steady, and the rest of the family absorbs the impact in their own ways, even if it’s not always said out loud. 

What can make a difference is not always something large or complex. Often, it begins with recognition. Noticing that siblings are part of this story. Saying their name. Asking how they are doing and making space for an honest answer. Offering information in ways they can understand. Letting them know that their feelings, whatever they are, have a place.

Support can take many forms—conversations, counseling, connection with other siblings who understand, moments of attention that remind them they have not disappeared within the larger crisis. These gestures may seem small, but they carry weight. They tell siblings that they matter, not just as part of a family affected by cancer, but as individuals living through something that is shaping them in real time.

When siblings are supported, it strengthens the entire family. It allows them to process what they are experiencing, to stay connected to those around them, and to continue growing in ways that are not defined only by illness.

Siblings are not on the edges of this experience. They are within it—watching, adapting, feeling, and making sense of it in ways that will stay with them long after treatment ends.

To care for a child with cancer is to care for a family. And to truly care for a family is to see everyone who is carrying the weight of the diagnosis, including those whose voices are often the quietest.

More Than Medicine is Ukandu's new blog series, created and curated by Ukandu Clinical Director Joel Lampert, PsyD, that shares stories, insights, and support for families battling childhood cancer. Joel specializes in supporting children and families facing complex medical and mental health challenges, especially childhood cancer. An Oregon native, he earned his doctorate from Pacific University and completed pediatric training at Children’s Home Society of Idaho. Known for his compassionate, culturally responsive care, he has served on the medical staff at Randall Children's Hospital and continues to mentor future clinicians.