Most often, we combine procedures for the convenience of the patient. Part of the cost of the procedure is the time off from work and all of your normal activities. So we often do as much as we feel is safe to give you the most benefit from your time off and let you recover one time instead of having two separate recoveries.
If you don't mind waiting for the liposuction, by all means do so. One thing about the breast reduction is that it is exhausing for the body. Although it is not normally very painful, it takes a toll on you physically. Liposuction is also similarly draining. If you are concerned, express this to your doctor. Maybe you will feel so good after your breast reduction that you will be able to be a little more active and get rid of some of the extra 20 lbs first before undergoing liposuction, if you even need it at all.
Good luck!
