Suppose there was someone who's perfectly healthy, just stressed, or worried, or or unhappy.
And suppose that, for whatever reason, they go see their doctor about their problems, they get a diagnosis of depression, or social anxiety disorder, or something, and a prescription for Prozac.
What's wrong with this picture? Well, it's a clear case of medicalization: because I made it up to be a good example of medicalization. But what's wrong with medicalization? The medicines themselves? Many people think so, but if you ask me, they're the least troublesome part of the process.