Cancer afflicts approximately one in two men, and one in three women, in his or her lifetime. One of the keys to successful cancer treatment is early detection. Fortunately, screening tools exist for many of the most common cancers, and it is imperative to follow the recommendations of your physician(s) as well as the screening guidelines that exist for many cancers. However, raising awareness of signs and symptoms of cancer can also be useful to maximize the prospects for early detection.