Is it normal to have 25 lbs removed and only 9 lbs. register on the scale post op?

There are two reasons why you are not seeing the stated amount of weight reduction due to tissue removal after your tummy tuck and liposuction. First, you are experiencing fluid retention which is perfectly normal in the first few weeks after surgery. Most of this fluid will be mobilized and excreted by three weeks after surgery. That will give you a closer approximation to the intraoperative tissue weights removed. Secondly, the amount of weight that is the result of liposuction is never all just fat. Rather it is a mixture of fat, blood and fluids infused to do the procedure. Thus, liposuction 'weights' are always inflated over the weight of the fat that is removed. You can usually cut the liposuction aspirate weight in half to give a more accurate estimate of the true fat weight removed.

Weight loss in the postoperative period after body contouring surgery is variable.  Intravenous fluids and fluids infused at the time of liposuction may take some time to be mobilized.  This fluid retention early-on will contribute to overall body weight and it may take several weeks until body weight normalizes.  More importantly, however, these procedures are designed to improve overall shape and body contour and I would not put too much emphasis on amount of weight lost.