When Cancer Survivorship Meets Technology: Overlooked Barriers in Digital Design

Meet Megan – not her real name – a woman in her forties who, after a breast‑cancer diagnosis and months of chemotherapy, started forgetting simple things like people’s names or where she set her keys. The so‑called “chemo brain” left her feeling scattered, and long, dense instructions on a webpage turned into a nightmare.

She isn’t alone. In the United States more than 18 million people consider themselves cancer survivors. Roughly 70 % of them report lasting functional limitations – almost double the rate in the general population. Those limitations aren’t only physical; they can be cognitive, visual, or even affect fine‑motor skills.

Our team of computer‑science researchers, focused on human‑computer interaction, wanted to see how these impairments play out when survivors reach for a smartphone or a laptop. We designed a mixed‑methods study – surveys, semi‑structured interviews and diary entries – and invited a diverse group of 46 survivors, aged 20 to 78, to share their everyday digital experiences.

What we heard was sobering. Almost half (48 %) said fatigue lingered long after treatment ended, while more than half reported anxiety or depression. One third described cognitive hurdles akin to chemo brain, 30 % struggled with hand or finger dexterity, and 15 % faced new visual problems. For many, these issues persisted for years; one participant recounted still feeling drained 29 years after a leukemia diagnosis.

When it came to using software, the numbers painted a clear picture of trouble. Over 50 % found themselves easily distracted or unable to focus while navigating a website. Close to the same proportion felt frustrated with apps that had felt “easy” before their illness. Specific pain points included:

• 46 % – difficulty reading text
• 39 % – trouble following instructions
• 37 % – problems finding their way around a site
• 35 % – issues with images or icons
• 30 % – difficulty typing
• 22 % – challenges with scrolling or clicking
• 20 % – trouble hearing audio content

These figures show that cancer survivors form a distinct user group, not simply an older adult or a person with a static disability. Their impairments can appear suddenly, waver day‑to‑day, and endure well past the final scan.

Take the survivor who lost money because a tiny button was impossible to read, or the one who felt embarrassed asking friends for help with a simple task. Even some clinicians underestimate the impact – one oncologist, in a separate interview, brushed off a patient’s chemo‑brain complaints, saying, “Well, it’s only my brain. It’s not like I need to use it for anything.” Such attitudes only deepen the sense of isolation.

Good news? Many of the fixes are low‑tech and inexpensive. Breaking up long paragraphs into bite‑size bullet points, using larger fonts, boosting colour contrast, and offering voice input or output can make a world of difference. Giving users the ability to zoom, providing clear step‑by‑step guidance, and limiting the number of simultaneous options all help reduce cognitive load.

More importantly, designers should involve cancer survivors directly in the design process. In our own lab we’re piloting a “chemo‑brain” game that teaches students how to build interfaces that respect memory lapses and visual strain. Co‑design not only yields better products; it signals respect for a community that is often invisible to tech teams.

Future, larger‑scale research could tease apart how different cancers and treatment combos affect digital interaction – does a brain‑tumour survivor struggle differently than someone treated only with chemo? Do income, age or tech‑savviness amplify the barriers?

As medical advances push survival rates higher, the conversation must shift from “I beat cancer” to “how can I live well now?” Accessible technology is a vital piece of that puzzle. When we build apps, websites and devices with survivors in mind, we’re not just complying with guidelines – we’re restoring independence, confidence, and a sense of belonging for millions.