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: Flank pain - Pain on one side of the body between the upper abdomen and the back. Abdominal Mass - a mass in the area of the kidneys discovered during an examination. Anemia - a condition in which the number of red blood cells is below normal.
Symptoms. Kidney cancer rarely causes signs or symptoms in its early stages. In the later stages, kidney cancer signs and symptoms may include: 1  Blood in your urine, which may appear pink, red or cola colored. 2  Back pain just below the ribs that doesn't go away.