[new12345]

Cancer is no where close to "well identified disease". Bacterial infection is one as we understand what causes it and that's why we have been successfully able to bring down the number of bacterial infection cases by educating folks on how and what to avoid. Its not the case for cancer(or we intentionally ignoring the cause here) whose numbers are rapidly increasing every year.

[GuB-42]

We have a pretty good idea of what causes cancer, and unfortunately, time and random chance are the biggest factors. You can lower the odds by following some recommendations but unless something else kills you first (probably your heart), you will get it eventually.

Also, once it's there, we know it's there, and we know exactly how to cure it: destroy all the cancer cells. The hard part is doing it without killing you in the process, and making sure that not a single cell is left in the end.