text: does cancer infected to other people?   no cancer is not a communicable disease. it is not contagious or spead from person to person. communicable disease: illnesses caused by microorganisms and transmitted from an infected person or animal to another person or animal. some diseases are passed on by direct or indirect contact with infected persons or with their excretions. most diseases are spread through contact or close proximity because the causative bacteria or viruses are airborne; i.e., they can be expelled from the nose and mouth of the infected person and inhaled by anyone in the vicinity.   cancer is a disease of cells. it is an abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some cases, to metastasize (spread).   cancer is also called malignancy. a cancerous growth or tumor is sometimes referred to as a malignant growth or tumor. a non-malignant growth or tumor is referred to as benign. benign tumors are not cancer.   cancer is not one disease. it is a group of more than 100 different and distinctive diseases. cancer is not contagious. http://www.answers.com/cancer?gwp=12&method=2