We are told this is a problem.
It occurs when the bar is lowered for what’s considered a real disease. For example, overdiagnosis presumably exists when we incidentally discover slow-growing cancers in older people. Basically, when we find a cancer that may not kill someone sooner than Father Time. And, as the story goes, we treat the cancer with lots of medicines, tests, and therapies–since the more diseases we diagnose in American medicine, the more treatments we recommend, and the more money we make, right?