Signs and Symptoms
In its early stages, kidney cancer usually causes no obvious signs or troublesome symptoms. As a kidney tumor grows, symptoms may occur. These may include:
- Blood in the urine. In some cases, blood is visible. In other instances, traces of blood are detected in a urinalysis, a lab test often performed as part of a regular medical checkup.
- A lump or mass in the kidney area.
Other less common symptoms may include:
- Loss of appetite
- Weight loss
- Recurrent fevers
- Pain in the side that doesn't go away
- General feeling of poor health
High blood pressure or a lower than normal number of red cells in the blood (anemia) may also signal a kidney tumor. These symptoms occur less often.
UCSF Health medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.