The short answer
Kidney cancer is staged from I to IV based on the size of the tumor and whether it has spread beyond the kidney to nearby tissue, lymph nodes, or distant organs. Earlier stages are often treated with surgery.
Kidney cancer is staged from I to IV.
Stage depends on the tumor's size and whether it has spread beyond the kidney.
Stage I and II cancers are confined to the kidney. Surgery is the standard treatment.
Stage III has reached nearby tissue or lymph nodes; stage IV has spread to distant organs.
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The simple version
This page explains kidney cancer stages for patients and families. Kidney cancer is staged from I to IV. The stage depends on the size of the tumor and how far it has spread beyond the kidney. Earlier stages are confined to the kidney, and surgery is the standard treatment.
What the stages mean
- Stage I — tumor is 7 centimeters or smaller and stays within the kidney.
- Stage II — tumor is larger than 7 centimeters but still confined to the kidney.
- Stage III — cancer has spread to lymph nodes, blood vessels, or surrounding tissue.
- Stage IV — cancer has grown beyond the kidney's fatty layer or has spread to distant organs, such as the lungs, liver, or bones.
Why tumor size matters at early stages
For stage I and II, the main difference is simply how large the tumor has grown.
How the stage is found
Imaging scans, such as CT (a detailed x-ray scan), MRI (a scan that uses magnets), and ultrasound, are tests the National Cancer Institute lists for kidney cancer. Doctors can also examine tissue in a lab. Your care team can explain which tests were used for your stage.
Why it matters
For earlier-stage kidney cancer, surgery is the standard treatment. This is a partial or full removal of the kidney. For stage II, the National Cancer Institute says surgery can be curative. For stage III, pembrolizumab or sunitinib after surgery may extend the time before the cancer returns. For stage IV, targeted therapy and immunotherapy combinations are among the first options.
Living with one kidney
The National Cancer Institute says a person can live with part of one working kidney. If both kidneys are removed or not working, a person needs dialysis or a kidney transplant. Ask your care team how your kidney function will be checked after treatment.
What to ask your team
- What stage is my kidney cancer?
- Is it confined to the kidney?
- Is surgery alone likely to be enough at my stage?
- What does the stage mean for my outlook and my follow-up plan?
Sources
Common questions
How is kidney cancer staged?
It uses stages I to IV, based on the size of the tumor and how far it has spread — to nearby tissue, lymph nodes, or distant organs such as the lungs or bones.
What are the early stages?
Stage I and II cancers are confined to the kidney, differing mainly by size. Surgery is the standard treatment.
What are the later stages?
Stage III has spread to lymph nodes, blood vessels or surrounding tissue. Stage IV has gone beyond the kidney's fatty layer or spread to distant organs. The National Cancer Institute lists targeted therapy and immunotherapy among the first treatment options for stage IV.
Why does the stage matter?
The stage helps determine which treatments may help. The National Cancer Institute says the chance of recovery is tied to the stage at diagnosis.
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Last updated: 2026-10-16Next planned review: 2027-07-07
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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, 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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