Just imagine that you went to your doctor for your annual checkup. She checked you completely, and then decided that you needed a mammogram. Your first horrified thought is, "Oh no, why is she asking for an x-ray of my breast? Can it be cancer? But I did not notice any breast cancer symptoms."

There are a hundred individual classes of cancers, each with a separate set of indications and different means of diagnosis. Here is an outline of prevailing cancers, their symptoms, manifestations and what we could do to help in detecting their occurrence.