Not 100% certain that knowing my personal approach to the patient with a BMI over 30 is that helpful. It's worth noting that about 60-65% of the adult population is overweight/has obesity so it's pretty much bread and butter stuff for all anaesthetists.
My original point was that the statement that 'At that weight your increased risk of death under GA is double as you are classed as morbidly obese' is unhelpful because 1) the OP doesn't tell us a weight, but rather a BMI, 2) as several other posters have hinted, a hysterectomy doesn't always need a GA - so that makes the idea of the risk of death under GA less helpful, 3) not all obesity is the same (the OS-MRS score gives some indication of the risk of mortality associated with bariatric surgery but may have application in other types of surgery), 4) the implication of the comment is that the risk of death under GA due to obesity is significant - not quite the same thing, but the risk of death due to anaesthesia is about 1:100,000 for all comers... even if the incidence doubled with 'morbid' obesity that would still make death an extremely rare event. The risk of death IIRC in all comers having abdominal hysterectomy (quick glance suggests ~6:100,000) is a bit higher than that, but is still rare. The statement too which i was replying was really just scaremongering.
The risks are of course 'perioperative' rather than purely anaesthetic and a few people in the thread have stated that it's the risk of 'the anaesthetic' that's the issue - it is not. As I suggested in another post the risks have to be balanced against those of doing nothing/following another course of action (including waiting for a weight management programme before operating).
Obesity certainly can make things more challenging perioperatively and can contribute to serious complications but it's not an absolute given and sweeping statements really aren't that helpful.
And just for interest, it's perhaps worth throwing in the idea of the the 'obesity paradox' whereby some patients with class 1/2 obesity (so that doesn't include customers with BMI in the 40s) may actually experience less M&M than those with a normal BMI!
HTH