what are sign of cancer?
['Cancer can cause many symptoms, but these symptoms are most often caused by illness, injury, benign tumors, or other problems. ... ', 'Bladder changes.', 'Bleeding or bruising, for no known reason.', 'Bowel changes.', 'Cough or hoarseness that does not go away.', 'Eating problems.', 'Fatigue that is severe and lasts.']