[blix]

Doctor's dislike when patients come in having tried to figure out something about their condition or treatment on their own. It seems to knock them out of their routine.

I have personal experience with this as a patient and a family member of physicians. I wish I didn't know what docs say and think about their patients. It's a really unfortunate characteristic of the US medical system.

[jacquesm]

It goes further than that, it challenges their ego and the feeling that they know everything better than the patient does. This is not unique to the medical profession, but there the damage is immediate and sometimes fatal.