The short answer
NCI recommends planning the conversation in advance, naming concrete changes such as flextime or working from home, documenting each request and result, and asking your doctor for a written explanation of how treatment affects your schedule.
Plan what you will say before the meeting; NCI says there is no single right approach.
Begin with a conversation with your supervisor or HR about what adjustments you need.
Ask for specific adjustments — flextime, working at home, special equipment.
Write down each request and what came of it.
On this page
Choose how you want to read this
The whole article, with every detail and caution.
This page is for people in cancer treatment who are getting ready to talk with their boss. It covers what NCI suggests saying, asking for, and writing down.
Go in with a plan, not a confession
Most people rehearse this conversation as an announcement — the moment they tell their manager something big. NCI's guidance treats it as something more manageable: a request, planned in advance.
It says to plan what you will say about your cancer, and it acknowledges there is no right way to deal with others about your illness. That second half is genuinely freeing. There is no template you are failing to follow.
Start with a conversation
A practical way to begin is a quiet conversation with your supervisor or HR about the adjustments you need. NCI's guidance is to ask for adjustments that support your continued employment and to document each request and its outcome.
Ask for named things
The single most useful piece of NCI's guidance is to request specific changes. The examples it gives are flextime, working at home, and special equipment at work.
Compare two versions of the same conversation. One is "treatment is going to make things difficult for a while." The other is "I have infusions on alternate Wednesdays, I would like to work from home the following day, and I would like my Wednesday afternoon meetings moved."
The first hands your manager an open-ended worry. The second hands them a scheduling task. A specific request is easier to act on.
Turn a health problem into a logistics problem and you make it something your employer can actually say yes to.
Write it down
NCI advises documenting each request and its outcome. This is unglamorous and it is the advice people most often skip.
A short email after the conversation, covering what you asked for, what was agreed, and when it starts, is one simple way to keep that record.
Bring your doctor into it
NCI suggests having your physician provide a written explanation of how cancer may affect your work schedule.
A letter gives your employer a written account from your doctor of how treatment may affect your schedule. Ask your care team about it.
What the law is doing
NCI notes that federal law prohibits discrimination against workers with disabilities, including cancer, and it directs readers to the Cancer Legal Resource Center for further detail.
NCI also suggests asking your social worker about employee protections in your state.
The team is a separate question
Deciding what your manager knows does not decide what your colleagues know. Coworkers may respond in different ways, and some may not know how to help.
It also makes a practical suggestion for keeping people informed during absences — by phone, email, or through a trusted intermediary — noting that colleagues who are kept informed are less anxious. If you would rather not run that yourself while in treatment, nominating one person to do it is a legitimate arrangement. And if a coworker's attitude is hurting you, NCI's advice is to start a direct conversation, and if problems continue, to involve your manager or an employee assistance counselor.
A reasonable shape for the meeting
- Say that you are having treatment and expect to keep working.
- Name the specific adjustments you want.
- Say what you will still be delivering.
- Offer the doctor's letter.
- Then send the email that records what you agreed.

Common questions
How much detail does my manager need?
NCI does not set an amount. It says to plan what you will say and that there is no right way to handle it. That is your choice.
What sort of changes can I ask for?
NCI gives examples including flextime, working at home, and special equipment at work. Asking for named changes is more workable for an employer than asking for general flexibility.
Why does NCI say to document everything?
Its guidance is to keep a record of each request and its outcome. That record is what you have if the arrangement is later disputed or forgotten.
Should my doctor be involved?
NCI suggests having your doctor provide a written explanation of how cancer may affect your work schedule. That gives your request written support.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
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Your next step
Turn this topic into questions for your next appointment.
Talk with a trained specialist or navigator
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
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Get urgent help
Fever of 100.4°F (38°C) or higher during chemo, severe pain, or trouble breathing: call your cancer care team right away, day or night. Call 911 for an emergency.
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Sources last checked: 2026-10-16 what this meansLast updated: 2026-10-16Next planned review: 2027-08-11
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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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