Symptoms

Common symptoms of kidney cancer include:

• Blood in your urine (which may make urine look rusty or darker red)
• Pain in your side that doesn’t go away
• A lump or mass in your side or abdomen
• Weight loss for no known reason
• Fever
• Feeling very tired

These symptoms may be caused by kidney cancer or by other health problems, such as an infection or a kidney cyst. People with these symptoms should tell their doctor so that any problem can be diagnosed and treated as early as possible.