Many surgeons use drains because that's just what they do. That's how they were taught and that's how it's going to be. Most surgeons that have trained within the last 10 or 15 years use drains when they are needed. Decisions that tend to lead me to use a drain would be if there was abnormal bleeding/oozing during the case or or if multiple cysts were ruptured during the case, and I was concerned about an infection. Other times I may use drains would be with the shorter scar breast reductions that limit scarring but have potential to leave a 'dead space' (an open area) within the breast. Your body will not tolerate such a space and quickly will fill the area with fluid. In that case a drain would be used. All that being said, drains are not the end of the world, and after a couple days they will come out. If you are comfortable with your plastic surgeon, and you trust him or her, then go for it. Best wishes.