This is a story that was told to me some years ago.
A woman went to her physician with vaginal itching for several days and one episode of some white discharge. The physician took only an oral history.
“Do I have a yeast infection?”
“From what you’re describing, it doesn’t sound like a yeast infection to me. It could be bacterial. It could be other things. Let me prescribe you some medications.”
“Can you at least take a look since I came all this way?”
A speculum and an actual exam later…
“Err… you do have a yeast infection. Let me change that prescription.”