I bled for around 6 weeks post caesarean, but the first 2 were the worst and then it became like the last two days of a period for the rest. I used around 3 packs of maternity pads a week for the first two weeks then smaller pads for the rest of the time. I think it depends on what they do while they are in there and how dilated you are before the c/s...my OB suctioned heaps of blood up during the c/s and I had a drain in for 24 hours post to take some of the blood out, but I still bled for ages (or what felt like it)