He can say that out of one hundred patients in your circumstance a certain number will be put in remission or cured, but, he cannot predict what will happen to you. Likewise, when a plan is made to go from A to B and then to C, that is what you expect to happen. The more information you have about your cancer the better prepared you are going to be to shift with these changes. Some questions will have no answers. There is a lot of speculation about the causes of cancer, but only a few instances that stand up to scientific scrutiny.
Smoking increases the risk for lung cancer.
Being an eighteenth century chimney sweep increased the risk for scrotal cancer. Too much smoked fish in the diet increased the risk for stomach cancer in Nordic countries. In some areas of China there is a high incidence of esophageal cancer from their diet of pickled fermented cabbage. Women who worked as painters of watch and clock faces with luminous paint developed mouth cancers. They were using a paint with a radioactive substance in it and licked their brushes to put a fine point on them.