Poor DS has just shrieked for me that his willy is bleeding, and indeed there was enough blood that's gone through his pants and trousers, he only noticed because there was blood on a soft toy he was lying on when he moved. He was unstandably quite scared and I've washed him and calmed him down - he says that it doesn't hurt (he just needed a wee afterwards and I wondered if it might sting) and he claims he wasn't pulling at it and hasn't fallen over or been bashed there today. I think he would tell me, I know he has been known to fiddle with it, as most boys do at times!
I'm trying not to panic and have told him it's probably a little tear in his foreskin, does that sound right? Unfortunately neither DH nor I are exactly experts, me not having one and DH being circumsized from a baby! Just not sure where a sudden tear would have come from?
It seems to have stopped now, I've put him in boxers with a pantyliner so I can see if it happens again.