Pets, Gardening and — Infection Precautions

Yes, in most cases. NCCN and ASCO infection-prevention guidance does not recommend rehoming a pet as a routine precaution. What changes is how specific tasks are managed. Someone else should handle litter cleaning, cage cleaning and waste disposal, particularly during the days when your white cell count is likely to be at its lowest. Wash your hands after handling your pet, and keep scratches and bites away from broken skin. If you live alone, ask your oncologist what precautions apply to your specific treatment.

Someone else in your household, if at all possible. Cat faeces can carry Toxoplasma, a parasite that rarely causes problems in healthy adults but can cause serious infections in people whose immunity is suppressed by chemotherapy. If you have no one to help, wear thick gloves, change the litter daily — Toxoplasma eggs take more than a day to become infectious — and wash your hands immediately afterwards. Tell your oncologist you are managing this alone so they can advise based on your current treatment and blood counts.

Yes. Reptiles — including tortoises, lizards and snakes — shed Salmonella as a normal part of their biology, which can cause serious bloodstream infection in people with lowered immunity. NCCN guidance specifically names reptiles as higher risk for immunocompromised patients. Birds carry organisms in their droppings that can cause lung infection. If you have a reptile or bird, ask your oncologist what level of precaution applies to your situation. Avoiding direct contact with waste and thorough handwashing are the minimum at any point in treatment.

Turning compost carries the highest risk because it releases the densest concentration of fungal spores. Digging in wet or heavily cultivated beds, repotting large indoor plants, and working with bark mulch also carry higher spore counts. Lower-risk tasks include deadheading, light pruning with no soil contact, and watering. Whatever task you do, thick gloves and a well-fitting face mask are the minimum. Any break in the skin from a thorn or tool needs immediate washing and same-day contact with your team if it looks red or inflamed.

Wash the area straight away with soap and water for at least a couple of minutes, then cover it with a clean dressing. Call your oncology team the same day, even if the wound looks minor. Bites and deep scratches introduce bacteria directly into the tissue, and during chemotherapy an infection that would resolve on its own in a healthy person can spread faster and become more serious. Do not wait to see whether it becomes infected — early assessment is always the right call during treatment.

Most oncologists advise against it during treatment. A pet's mouth carries bacteria, and allowing them to lick your face or any broken skin creates a direct route for infection. Sleeping in the same bed means hours of close contact with skin you cannot monitor. This is not a permanent change — it is a precaution for the period when your immunity is most affected. If the change is upsetting for you or your pet, ask your oncologist which phases of your treatment carry the highest risk so you can plan around those specifically.

Stagnant water in flower vases can harbour bacteria and fungi, and some oncologists advise removing cut flowers from the room during the periods of lowest immunity. Fresh soil from potted plants carries the same fungal risk as garden soil at lower intensity. If you are given flowers or have houseplants, ask your team whether this applies to your current treatment phase. Keeping vase water fresh and handling potting soil with gloves is a reasonable precaution regardless.

When your immune system has recovered sufficiently — which your oncology team tracks through your blood results. Recovery happens at different rates depending on the treatment you had, how many cycles, and your individual response. There is no single date that applies to everyone. Ask at your end-of-treatment or follow-up review. Once your blood counts have returned to a safe range and stayed there, most normal activities including gardening and unrestricted pet contact can be resumed. Do not estimate the timing yourself — it is a question with a direct answer in your results.