Agree with LMK74, I had very little pain (they will keep pushing painkillers at you though), and the drains were the most annoying thing. I was in for longer and didn't have to take the drains home with me though. If you are able to do exercises (you will be shown how) to keep your arm mobility, it's good to do them as soon as possible. I had no mobility problems at all (mastectomy and axillary clearance).