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Kidney cancer mainly affects people of middle age and above. It is most common in people aged 50-70. Men are twice as likely as women to get it.
We don’t really know what causes it, but you are more at risk if you smoke. The cancer-causing substances in tobacco don’t just get into the lungs – they reach many other parts of the body too, including the kidneys.
It is sometimes possible for kidney cancer to be passed on through families. About one in every 20 kidney cancer patients may have inherited the disease.