General Discussion
In reply to the discussion: How Mammograms Improve Survival but Not Mortality [View all]hedgehog
(36,286 posts)"cancers" and "pre-cancers" that would never progress to actual cancer. If I understand correctly, these are anomalous cells that look like cancer cells to us, but which the body itself has spotted and walled off.
There is a similar issue with prostate cancers. Again, if I understand correctly, some are very aggressive and will metastasize while others are indolent and will never spread. Again, if I understand correctly, the odds are that if you get prostate cancer before a certain age, it is the aggressive type. If you get it in old age, it is the indolent type or it will metastasize so slowly that you won't live long enough to be harmed by it. Some doctors do not want to test for prostate cancer after a certain age because in this situation, ignorance is bliss; leave the cancer untreated and the patient and his family worries. Treat the cancer, and the side effects make the patient's life miserable.