Pitapata - my sister's condition was caused by the D&Cs...she was just unlucky I guess. I do believe though that infection can cause the same condition, and perhaps this is why your FS is concerned. I actually have really bad scaring and adhesions all over the left side of my pelvis (fortunately, my uterus is completely unaffected but this is what caused my secondary infertility) and one of the first tests my FS (Dr S) did was a blood test to check for past infections etc as this can sometimes be the cause. Not so in my case, he did a lap later which showed mine were the result of the surgery I had to remove the cyst from my ovary.

The bleeding in itself won't cause any problems (as far as I'm aware) but prolonged bleeding can be a symptom of something a bit suss, which is probably why your FS wants to look into it. I'd speak with him/her about it tomorrow if you can.