For a tummy tuck the basic supplies involve having an appropriate girdle for use after surgery. You need to have preferably some pads, some pads to place around the incision so that they can absorb any drainage that you can have in the first 48 hours. And you'll also need support hose because you'll need to be up and around early on after you've had your surgery.
Tummy Tuck Shopping List: The Supplies You Need Before Going Under the Knife
Dr. Mel Ortega indicates which supplies are necessary for each patient following a tummy tuck, and why.