Great Question.There is a technique that actually allows patients to stand up straight after a tummy tuck. Progressive tension or quilting sutures distribute the tension of the tummy tuck closure throughout the whole abdomen and away from the incision. Therefore, patients who have this technique are allowed to stand up straight on the same day of surgery. If your surgeon does this technique, ask if you can stand straight quickly.If your surgeon does not do this technique, then follow the instructions that are given.Most surgeons discourage the use of a walker, because it is best for our patients to get up quickly and begin using all their muscles. This helps our patients recuperate faster and avoids complications, such as, blood clots in the legs.Good Luck.