Will I gain weight after lap band removal if it's always been unfilled?

Most likely you will gain back what you lost after removing the Lap-Band.That's is the case with all medical/ surgical products in general unless you maintain a rigorous diet and exercise program.Even though your band is never filled, it still creates some level of restriction. This is even more significant in older (smaller) bands. In addition most surgeons add some fluid during the initial surgery to create more restriction.If you are happy with the band, then leave it. If you like to remove it, you can get the sleeve at the same time or expected to need some other intervention in the future.