I don't know that I would go quite that far but as a male nurse I noticed a difference in how I was treated compared to 4 females that started at the same time. We were all brand new nurses with basically the same level of experience. I was treated great and when my preceptors had questions or suggestions they were very upfront about it. My new coworkers on the other hand would become very distressed because nurses were talking about them behind their backs the first week. Everyone was nice to their face, but would go to others saying how they did something wrong or questioning what they were thinking when they did things or said things.
Being a guy I don't really understand why some females do this, but they do. For most new nurses the sudden transition from clinicals to being a REAL nurse and the realization that you are now responsible for others lives and well being is very stressful. When you add to this just 1 or 2 people that act this way and you have the recipie for a complete meltdown. Suddenly they seem to think all of the female nurses are just well B**chs.
At 1st I thought this was just on my unit, but my residency cohort was 105 people with maybe 12 guys, all the guys were talking about how great everyone has been and the majority of the females were talking about leaving work in tears. One unit actually has a group of nurses nicknamed the "mean girls" apparently 4-5 of them will try to make life hell on a new nurse if they don't like them, not really bullying them but talking bad about them just far enough away that the person can hear bits and pieces of it.
A study about 4 years back said that the average length of time a nurses stays in the profession from graduation is 3 years, the number one reason for leaving was workplace environment and interpersonal issues in the workplace. I wish I had answers to the problem, all I can say is ladies don't act this way and if you see or hear others doing it tell them to cut the crap.