There’s a fine line between appearing cheap and wanting to understand the breakdown of your bill. The guy who obsessively runs down every item on the restaurant check to make sure there isn’t a single dollar unaccounted for? Not a great look. But when you’re spending thousands upon thousands for plastic surgery, it’s financially wise to want to know exactly where your money is going and to make sure you’re not being taken advantage of. Because unlike shopping at a store, there isn’t a fixed price for a breast augmentation; negotiations can be conducted, extra fees can be tacked on at the last minute, and going from a city practice to a suburban practice can mean significant savings.

We asked two plastic surgeons to share seven factors that can increase the cost of your breast augmentation.