More. 1  Oxygen Levels and Brain Function The brain consumes about 25 percent of a personâs oxygen intake, so proper brain function requires enough blood oxygen. 2  How Oxygen Affects the Heart The heart is a key player in making sure oxygenated blood travels to the organs and tissues that need it.
Other possible kidney cancer symptoms may include: 1  Flank pain - Pain on one side of the body between the upper abdomen and the back. 2  Abdominal Mass - a mass in the area of the kidneys discovered during an examination. 3  Anemia - a condition in which the number of red blood cells is below normal.  Fever - not due to cold or flu.
These and other signs and symptoms may be caused by renal cell cancer or by other conditions. There may be no signs or symptoms in the early stages. Signs and symptoms may appear as the tumor grows. Check with your doctor if you have any of the following: 1  Blood in the urine. 2  A lump in the abdomen.moking and misuse of certain pain medicines can affect the risk of renal cell cancer. Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer.