<P> Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body . These contrast with benign tumors , which do not spread to other parts of the body . Possible signs and symptoms include a lump , abnormal bleeding , prolonged cough , unexplained weight loss , and a change in bowel movements . While these symptoms may indicate cancer , they may have other causes . Over 100 types of cancers affect humans . </P>
<P> Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body . These contrast with benign tumors , which do not spread to other parts of the body . Possible signs and symptoms include a lump , abnormal bleeding , prolonged cough , unexplained weight loss , and a change in bowel movements . While these symptoms may indicate cancer , they may have other causes . Over 100 types of cancers affect humans . </P>
cancer is a disease that usually results when
cancer is a disease that usually results when
abnormal cell growth
abnormal cell growth