It used to be common practice for male doctors examining women to have a "stand by" or observer. Usually, it was a female, but, in a pinch (like in the Navy) a male would be used. (Although, women sailors, like their male counterparts, tend to loose all sense of modesty. If a Corpsman or doctor of either sex want them to drop trow, they do it without a second thought, standby or not.)
The purpose of having the standby was two fold:
1. To protect the patient from any form of sexual abuse. (Hardly ever happens) and
2. (The main reason) to protect the Health care Provider from the patient later coming back accusing them of sexual abuse or some other form of malpractice and suing them. (Again, hardly ever happens, but is slightly more frequent than the other)
I'm not sure, but I think the standby requirement has gone by the boards.
Personally, the only time that I remember having any sort of observer were Nursing and med Students of both sexes.
I always wondered why a MALE doctor had to have a standby when examining FEMALE patients, but a Female doctor did not require a standby when examining MALE patients.