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  Persistent pain in the side of the abdomen or the back, which is not the result of an injury. 2  A mass or lump in the abdomen. 3  Feeling fatigued.  Unexplained, sometimes rapid, weight 1  loss. A fever that is not due to an illness.
Male urinary system. Bladder cancer signs and symptoms may include: 1  Blood in urine (hematuria) â urine may appear bright red or cola colored. 2  Or urine may appear normal, but blood may be detected in a microscopic examination of the urine. 3  Frequent urination. 4  Painful urination. 5  Back pain.6  Pelvic pain.ale urinary system. Bladder cancer signs and symptoms may include: 1  Blood in urine (hematuria) â urine may appear bright red or cola colored. 2  Or urine may appear normal, but blood may be detected in a microscopic examination of the urine. 3  Frequent urination. 4  Painful urination. 5  Back pain.