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.
Common kidney cancer symptoms. The most common sign of kidney cancer is blood in the urine, known as hematuria. Other possible kidney cancer symptoms may include: Persistent pain in the side of the abdomen or the back, which is not the result of an injury. A mass or lump in the abdomen. Feeling fatigued.