What Is Cancer? The typical regulation that the body applies to all cells. There are countless trillions of cells in our body, and each one has a particular purpose. It's a really intricate process that is kept under incredible control, but if something goes wrong and that control is lost, certain cells may escape the usual regulatory mechanisms and continue to develop and maybe spread. We refer to that as cancer. When those cells come together, we refer to that as a tumor. In particular, cancer is a malignant tumor, and we call it malignant because, regrettably, cancer can spread to other tissues, which can be fatal. It can even penetrate into other organs. Since the body contains cells all around, cancer can actually develop anyplace. Of course, breast cancer in women and prostate cancer in men rank among the most frequent cancers. Additionally, lung cancer and colon cancer are prevalent cancers in both men a...