How to Protect Your Aging Parent From Falls During Chemo

The first fall warning during chemotherapy may not look like a fall warning. It may be a slipper half under the bed, a toe catching on the bathroom threshold, a parent saying their feet feel “weird,” or a new habit of reaching for furniture on the way to the kitchen. When an aging parent is in active treatment, those small changes matter. A fall is not just a household accident; it can become an oncology problem.

One older study of 109 people receiving neurotoxic chemotherapy found that 19.3% reported at least one fall since starting chemotherapy, and loss of balance was a significant predictor of falling. The study was small, single-center, and published in 2011, so it should not be treated as the one true fall rate for every patient. It is still useful because it names the problem many families see at home before they know what to call it: chemotherapy-related nerve symptoms and balance changes can show up as real falls. [1]

The stakes also change during treatment. OncoLink notes that chemotherapy is linked with higher fall risk, that risk can rise with each chemotherapy cycle, and that low platelets — thrombocytopenia — can make injury from a fall more serious. [2] That is the part families often miss. The bruise, bump, or “I’m fine” after a fall may need to be viewed through blood counts, medications, head impact, pain, and the next infusion date.

Why chemo can change the way your parent walks

Cancer treatment can raise fall risk through more than one route. ChoosePT, the American Physical Therapy Association’s public education site, describes several contributors: chemotherapy can affect nerves, vision, and the inner ear or vestibular system; cancer and treatment can also affect balance, gait, strength, and fatigue. [3] None of that means your parent is careless. It means the body systems that help someone feel the floor, judge distance, turn safely, and recover from a stumble may be under strain at the same time.

That is why support during cancer treatment has to include watching how your parent moves at home. Meals, rides, prescriptions, and appointment notes are important. So is noticing that your parent now pauses before stepping into the shower, leans hard on the vanity, or avoids the hallway after an infusion.

Older age already brings a baseline fall risk: more than one in four adults over 65 falls each year, and about one in five falls causes serious injury. ChoosePT also reports that studies have found 50% to 75% of cancer survivors fall at least once over a 6- to 18-month period; that broader survivor figure is not limited to older adults in active chemotherapy, but it shows why balance deserves attention in cancer care. [3]

What to watch for and report before a fall happens

The oncology team cannot respond to symptoms they never hear about. Adult children often hesitate because they do not want to “bother” the nurse or sound alarmed. For fall risk, the useful move is not to diagnose the problem at home. It is to report concrete changes early and clearly.

Use plain observations. “She almost fell twice this week when turning left” is more useful than “she seems off.” “He says his toes are numb and he cannot feel the bath mat” gives the team something to sort. “She is too weak to get from the recliner to the bathroom after infusion day” belongs in the treatment conversation.

Keep this information close to the chemotherapy schedule. If symptoms are worse on days 2 through 4 after infusion, say that. If the near-falls began after the third cycle, say that. The Tofthagen study found fall risk rose with cumulative dose and number of cycles in that sample, which makes timing worth tracking even when no one knows yet whether treatment is the cause. [1]

A simple notebook or phone note is enough. Record the date, treatment cycle if you know it, symptom, where it happened, whether there was a fall or near-fall, and what your parent was doing. Bring it to appointments or use it when you call the clinic. Do not wait for a dramatic fall if the pattern is already forming.

Make the house easier to survive on bad-treatment days

Home safety during chemo is not a decorating project. It is a way to reduce the number of decisions a tired, dizzy, numb-footed person has to make while walking to the bathroom at 2 a.m. Start with the paths your parent actually uses: bed to bathroom, chair to kitchen, entry door to car, and wherever medications, water, phone, and snacks are kept.

• Remove loose throw rugs from main walking routes, especially near the bed, bathroom, kitchen sink, and favorite chair.
• Move cords, baskets, shoes, pet bowls, oxygen tubing if present, and laundry out of walking paths.
• Improve lighting from bed to bathroom, including night lighting that does not require crossing a dark room to reach a switch.
• Keep commonly used items between shoulder and hip height so your parent is not climbing, reaching high, or bending low when weak.
• Use stable seating with arms where your parent dresses, rests after bathing, or puts on shoes.
• Make footwear boring and safe: well-fitting, non-slip, easy to put on, and not half-crushed under the bed.
• Ask before adding a cane, walker, shower chair, raised toilet seat, or grab bar; the right device helps, while the wrong height or placement can create a new hazard.

Bathrooms deserve fast attention because they combine fatigue, wet surfaces, thresholds, turns, and privacy. If your parent is newly unsteady, do not rely on towel bars, sliding shower doors, or the edge of a sink as “good enough” handholds. A sturdy grab bar, non-slip surface, shower chair, and clear approach path can matter more than any speech about being careful.

For a broader printable checklist, use the fall prevention handout for seniors. If the home needs more than quick fixes — grab bars, entry changes, bathroom equipment, lighting, or coordinated services — the aging-in-place fall prevention services roadmap is the better handoff.

Plan around the chemo calendar, not an average day

A parent may walk well at the oncology clinic and still be unsafe at home two days later. Build the home plan around the worst predictable days: after infusion, during heavy fatigue, after poor sleep, when appetite drops, or when dizziness is more likely. On those days, shorten walking routes, set up water and medications where they can be reached safely, keep the phone within reach, and avoid unnecessary stairs or errands.

If your parent lives alone, the plan needs a check-in pattern. That can be a scheduled call after waking, a text after the first bathroom trip, a neighbor who knows when to knock, or a wearable alert system if appropriate. The point is not to monitor every move. It is to avoid discovering a fall hours later because everyone assumed someone else had checked.

Ask about PT and balance exercise before copying exercises from the internet

Balance exercise can help, but active chemotherapy is not the time to guess. Ask the oncology team whether your parent should have a physical therapy evaluation, especially if there is neuropathy, recent falls, new weakness, dizziness, low blood counts, bone metastases, pain, or a mobility device already in use. A physical therapist can assess gait, strength, sensation, vestibular issues, assistive-device fit, and the safety of home exercises.

The reason to ask is practical: different problems need different fixes. Numb feet may require footwear, lighting, device training, and balance work. Dizziness may need medical review and a vestibular assessment. Weakness after infusion may call for energy conservation, supervised strengthening, or timing changes in activity. A hallway “tightrope walk” is not automatically safe just because it appears in a fall-prevention article.

There is encouraging evidence for discussing activity instead of avoiding the topic. The American Cancer Society reported on a study presented at the 2024 ASCO Quality Care Symposium in which adults age 65 and older with lung, colorectal, or prostate cancer had lower fall risk when they discussed physical activity with their doctor. The report named balance exercises including calf raises, one-foot stand, tightrope walk, and leg lifts. [4]

Treat those exercise names as conversation starters, not a prescription. A safer request to the oncology team is: “Can we get a PT referral or clearance for balance exercises? We are seeing new unsteadiness during chemo and want to prevent a fall.” If the team approves home exercise, ask exactly where to do it, what support surface to use, whether someone should stand nearby, how many repetitions are appropriate, and what symptoms mean to stop.

What to do if your parent has already fallen

After a fall during chemotherapy, do not treat “no broken bone” as the only question. Report the fall promptly to the oncology team. Tell them when it happened, whether your parent hit their head, whether there is bleeding or bruising, new pain, confusion, dizziness, weakness, trouble walking, or any change from baseline. Also mention blood thinners or anticoagulants if your parent takes them, and ask whether platelet counts or treatment timing change what should happen next.

If there is head impact, significant pain, bleeding, new confusion, new weakness, inability to get up, shortness of breath, fainting, or anything that feels urgent, use emergency services or the oncology team’s urgent instructions. Do not wait for the next routine appointment to mention it.

For a caregiver-facing triage path and prevention follow-up after a fall, use the fall prevention FAQ. Then update the home plan immediately: remove the hazard involved, add lighting or support where the fall happened, and ask whether PT, medication review, lab review, or mobility equipment is needed before the next treatment cycle.

The caregiver job is to make fall risk visible early

You cannot control chemotherapy side effects, platelet counts, neuropathy, or treatment decisions. Those belong with the oncology team. What you can do is make the risk visible sooner: notice the changed walk, report the numb feet, clear the path to the bathroom, ask for PT before the second fall, and treat every fall during chemo as information the care team needs.

That is not a side chore. It is part of helping treatment continue as safely as possible.

References

1. Falls in Persons with Chemotherapy Induced Peripheral Neuropathy — Support Care Cancer, 2011.
2. Fall Risk — OncoLink, Penn Medicine, April 2025.
3. Cancer-Related Balance and Falls: What You Should Know — ChoosePT/APTA, May 2024.
4. Exercise Linked to Fewer Falls in Older Adults with Cancer — American Cancer Society, October 2024.