Kidney cancer is cancer that originates in the kidneys. Your kidneys are two bean-shaped organs, each about the size of your fist. They're located behind your abdominal organs, with one kidney on each side of your spine.
In adults, the most common type of kidney cancer is renal cell carcinoma. Other less common types of kidney cancer can occur. Young children are more likely to develop a kind of kidney cancer called Wilms' tumor.
The incidence of kidney cancer seems to be increasing, though it's not clear why. Many kidney cancers are detected during procedures for other diseases or conditions. Imaging techniques such as computerized tomography (CT) are being used more often, which may lead to the discovery of more kidney cancers.
Symptoms
Kidney cancer rarely causes signs or symptoms in its early stages. In the later stages, kidney cancer signs and symptoms may include:
- Blood in your urine, which may appear pink, red or cola colored
- Back pain just below the ribs that doesn't go away
- Weight loss
- Fatigue
- Intermittent fever
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