Radiotherapy for kidney cancer

Radiotherapy is not usually standard for kidney cancer. These tumours often respond less well to radiation than some other cancers. But in some situations, it can still be helpful.

Radiotherapy may be used:

• To relieve symptoms: If the cancer has spread (for example to bones or brain) and causes pain or other problems, radiotherapy can reduce symptoms and improve comfort.
• For hard-to-reach tumours: If surgery is not possible or safe, radiotherapy may  shrink the tumour.
• If there are only a few metastases: In some people with only a few spots of cancer (called “oligometastatic disease”), a special, precise radiotherapy may slow the disease.

After surgery: radiotherapy is sometimes used after surgery to make sure all cancer cells are gone, but this is usually not needed for kidney cancer.

Radiotherapy is often used along with other treatments, such as surgery, immunotherapy, or anti-angiogenic therapy, to improve results.

This chapter contains general information about radiotherapy for kidney cancer. It is not a substitute for professional medical advice or treatment. Always consult your doctor or healthcare provider for guidance on your individual medical situation.

Last updated: September 2025

Reviewed by: 

• Ms. Claudia Ungarelli (Patient Office EPAG)
• Dr. Gaëlle Margue (YAU Working Group on Renal Cell Carcinoma)