First, 80% of all cancers are associated with environmental causes like smoking, chewing tobacco, alcohol, radiation, and drugs.
Second, there are some well known signals of cancer which must be recognized and investigated.
Third, most cancers, when detected and treated early, are curable.
Medical science today has the capability and technology to control, and largely prevent, cancer. However, we need to overcome our fear and any tendency to procrastinate — both can be fatal.
Prevention, awareness and early detection are the most important information rather than confusing the visitors such as yourself with unneccessary medical jargon.