Doctors are human and not all knowing.
Some of them think otherwise.. I had some pain in my knees, went to see the orthopedic doctor that I'd consulted a year or so before with another knee problem. Turns out my doctor had retired, and I was referred to this new doctor. I met with him, we chatted for a bit as I explained where the pain was.. He seemed like a
pretty good "replacement" for my old doctor. He took xrays, and when I came back later to see what the problem was, the first thing out of his mouth was I needed surgery. I told him I'd have to think about it, and get a second opinion... I told him this in a very polite, conversational way, but his whole demenor changed. He got a frown on his face and he told very merudely that perhaps I'd better go see another doctor ANYWAY.. Prior to my saying the "magic words" - second opinion, he'd been this very personable doctor, once I stated that, it all changed.. Needless to say I found another doctor right away.. Most doctors understand that when the word "surgery" is used, its best-practice for the patient to get a second opinion... Apparently NOT with this doctor, and his precious ego... A bit of reading about the problem he found on WebMD showed that the only people who normally had surgery for this problem were young active sports players.. I was, at the time, in my late 50s and played no sports..