The short answer
The first tasks are to confirm where the cancer has spread, to ask whether a biopsy of one of those new sites is needed, and to ask whether ER, PR, HER2 and other results should be tested again, because they can change over time. Treatment then depends on those results, on what you have already had, on your symptoms and organ function, and on your own goals.
Ask whether a biopsy of a metastatic site is needed, and whether ER, PR and HER2 should be repeated.
Treatment depends on hormone receptors, HER2 status, prior treatments, symptoms, organ function and your own goals.
Palliative care supports symptoms and quality of life alongside treatment aimed at controlling the cancer.
Restaging shows where the cancer is now, using imaging, labs, pathology review and comparison with old scans.
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The full explanation.
First, name what changed
Learning that breast cancer has spread is heavy news, and the details can be complex. The first job is to separate what is confirmed from what is still being worked out. Ask where the cancer has spread. Ask whether a biopsy of one of those new spots is needed. And ask whether ER, PR, HER2, and other results should be tested again, because they can change over time.
Restaging and retesting
Doctors may order imaging, lab tests, a biopsy, pathology review, or molecular testing. They may also compare new scans with your old ones. This is called restaging, and it shows where the cancer is now. A new biopsy can confirm the finding and check whether biomarkers have changed since your first diagnosis.
Treatment goals
Treatment usually depends on the hormone receptors (ER and PR), HER2 status, the treatments you have already had, your symptoms, how well your organs are working, and your own goals. Ask the team to use plain words for the goal: cure, long-term control, shrinking cancer, delaying growth, preventing complications, relieving symptoms, or preserving quality of life.
Why prior treatment matters
The treatments you have already had shape what comes next. A cancer that comes back soon after a treatment is often handled differently from one that comes back after a long break. Your side effects, how well your organs are working, and what mattered most to you last time all count too.
Clinical trials and second opinions
Clinical trials are not only for the end of care. It is worth asking about them when cancer comes back, spreads, stops responding, or has a biomarker that matches a study. A second opinion can help you compare standard options, trial options, and timing. Asking for one is normal, and most teams expect it.
Symptom and quality-of-life support
Palliative care is support for symptoms, stress, communication, and quality of life. You can have it at the same time as treatment meant to control the cancer. Asking for palliative care does not mean giving up treatment, and it is not the same as hospice care.
Questions to bring
Bring a written list. Useful questions include: What is confirmed so far? What are we still waiting for? Is this local, regional, distant, or oligometastatic? What would a new biopsy change? What are the top two options, and what is the goal of each? Which side effects should I plan for? Who on the team do I call between visits?
When to get help sooner
- Call 911 or go to an emergency department if you have new weakness or numbness in your legs, trouble walking, or new trouble controlling your bladder or bowel, especially along with back pain. With cancer that has spread to bone, this can mean the spinal cord is being squeezed, and treatment works best while you can still walk. Also get emergency care for sudden shortness of breath, chest pain, a seizure, or sudden confusion.
- Call your care team at once, at any hour, if you have a temperature of 100.4°F (38°C) or higher, or shaking chills, while on chemotherapy or another treatment that lowers your blood counts. CDC calls a fever during chemotherapy a medical emergency, so this cannot wait for a routine same-day slot. Should you not be able to reach them quickly, go to an emergency department and tell them you are in cancer treatment.
- Call your care team the same day if you have severe or constant spine pain, pain in your mid or upper back, or back pain that wakes you at night; a new bad headache with nausea or vision changes; or pain your usual medicine no longer controls.
- Call your care team within a day or two if you notice a new lump or skin change on the chest or under the arm, a swollen arm, a new cough, or pain that keeps building over days.
Related pages
Start with When Cancer Comes Back, What Metastatic Cancer Means, Cancer Staging, and Clinical Trials.
Sources
Words to know
Tap any term to see what it means.
Common questions
What should I ask first?
Ask your team to confirm where the cancer has spread, whether a biopsy of a metastatic site is needed, and whether ER, PR, HER2, and other results should be repeated.
Does this mean there are no options?
No. Many people still have treatment, symptom support, clinical trial, and planning options.
Should I ask about palliative care?
Yes. Palliative care can help with symptoms, stress, decisions, and quality of life at any stage.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Your next step
Turn stage, biomarker, and treatment details into questions for your oncology visit.
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Sources last checked: 2026-08-13 what this meansLast updated: 2026-08-18Next planned review: 2028-07-20
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How this page was created
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. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Editorial review complete — This page completed Cancer Explained's editorial checks (sources, safety, plain language, duplication). It has not been reviewed by a physician or other healthcare professional.
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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