Maz, I had 4 nodes removed including sentinel none of which had cancer. I think it depends on your surgeon and how the cancer presents. I know my surgeon thought my cancer was a lot more aggressive than it turned out to be. I had a unilateral mastectomy and was in hospital 6 days and left with two drains still attached. I had the community nurses scheduled to see me each day to monitor the drains but I took over monitoring them so the nurses didn't have to visit. I was allowed to drive two weeks after my mastectomy so was out and about from that time. First drain removed after one week, second removed after 8 weeks and it still hadn't made correct levels but surgeon thought the drain itself was causing the fluid due to irritation. Main thing is every one is an individual and surgeons are also. Some have a rule below 30mls for two consecutive days before drain removed mine was below 20mls. (Helps avoid seroma). My surgeon said drive after 2 weeks, others I have heard are 6. Bottom line - if in doubt ask :-) Xx Cath