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Kidney Cancer
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:

  • Fatigue
  • 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.

Reviewed by health care specialists at UCSF Medical Center.