How bad of scars does a breast reduction leave?
I’m eighteen with D cups, and they are too large for my figure and frame to support, and I’m having back problems. I’m worried about the scars a breast reduction would leave, and I’m wondering what the best suggestion is.

Presuming you have a good doctor–who should be a plastic surgeon–the scars will be barely noticable once they heal, probably almost completely invisible after a six months or a year.
they will go around the areolas, then straight down the underside of your breasts, and around about 1/3 of the bottom in a curve. The bottom scars are hidden by the natural sagging of your breasts, and the ones around areolas look like they’re supposed to be there.
I had mine done ages ago, and I’m really glad I did. If you’re having back problems, your insurance may cover the cost of the surgery.