What would be some reasons a surgeon would not be able to do a hysterectomy laparoscopically.?

Many reasons. There are a multitude of reasons a LAVH cannot be completed in this fashion. As follows: 1.)Morbid obesity 2). Inability to see the uterus due to adhesions of the bowel. 3.) Injury to the bladder, bowel or major blood vessels resulting in the need of repair or emergency opening of the abdomen.4.)A massively enlarged uterus that can't be morcellated. (cut up) 5.) Surgeon lack of expertise.