My 3.5yr old has had blood virtually every time he poos for about 6 weeks now. 1st time at dr's he said wait and see. 2nd time, he agreed with me it's probably a tear brought on by the one and only time he's ever been constipated. It just doesn't seem to be clearing up and the blood is a good 10p piece size every time I wipe him. Dr has now prescribed lactulose to loosen things up but DS is already quite loose from the increase in fruit I've been giving him. So can't see the lactulose helping really. Has anyone got any experience with this? I'm starting to get pretty upset about it.