I had a complete hysterectomy at age 29 and gained 20 pounds the first 3 months after my surgery. That was 21 years ago and I've struggled with my weight ever since and it gets harder as I get older. The only time I was ever at my pre-surgery weight was when I was going through my divorce--I'm sure everyone's familiar with the divorce diet. My point is that hormones are a huge factor in weight loss/gain for us.