Prevention of cancer, by avoiding its potential causes, is the simplest method. First on most clinicians and researchers list is to stop (or better, never start) smoking tobacco. Avoiding excess sunlight (by decreasing exposure or applying sunscreen) and many of the chemicals and toxins is an excellent way to avoid cancers.
What is cancer?
Cancer is a disease of uncontrolled multiplication of abnormal cells (malignant cells). Cancer can affect any part of the body. The abnormal growth of cells often results in a mass (tumor) of malignant cells that causes further problems by occupying space used by normal tissues. Cancers cells can also move away from (metastasize) their initial site of development to invade other tissues of the body.
Is cancer contagious?
Cancer is not contagious. Close personal contact with a cancer patient, sexual relationships, kissing, touching, and sharing meals and/or utensils cannot cause other people to have cancer. Rarely, individuals who have received organ transplants from individuals that have cancer may also develop cancer from the transplant. However, currently a stricter screening procedure of organ donors has reduced the risk of transplants that cause cancer in organ recipients. Another very rare instance where cancer is transferred is from a pregnant mother to the fetus. A number of different viruses (human papilloma, Epstein-Barr, hepatitis B), bacteria (Helicobacter pylori) and parasites are associated with various cancers. However, although the viruses and other pathogens may be contagious or simply infectious, the cancers these organisms are associated with are not considered to be contagious.
How will I know if I have cancer?
There are more than 100 types of cancers (including breast cancers, lung cancers, bowel cancers, metastatic cancers, and many more). If you have some of the following symptoms and signs, it would be reasonable to contact your physician and let the physician know you are concerned:
There are various tests your physician can perform to evaluate your particular symptoms.
Medically Reviewed by a Doctor on 11/4/2016