I am a doctors receptionist and in the course of my work I have access to patient notes.
It is part of my job to read notes, add stuff to them and I see what the doctors write...and we have had cases of abuse due to bdsm.
Our doctors have always treated this as a matter of course. The gossip in the office has never been disrespectful...just puzzlement most of the time! (and boy do I need to bite my tongue!)
I have never seen a derogatory statement in a patients notes re this type of injury.
Maybe we are lucky in our surgery in having tolerant docs...I am not so sure that my own doc would be so tolerant.