can a blocked duct cause blood in milk?

[marzipananimal]

I think i had a blocked duct which seems to have just gone (after a few days of massaging etc). After his last feed some blood appeared under where his head had been as if he'd dribbled out some milky, bloody sick. My nipples aren't cracked or bleeding. Could the blood have been in the milk or should I be looking for another cause?
We phoned the doctor who said the blood is probably from my nipples (although i'm 99% sure it isn't) or maybe from ds's nose (I have a cold though ds doesn't seem to). I can't see any blood in his nose so don't think it's this. Any thoughts? He seems otherwise fine apart from waking up a lot more than normal last night. He's 3.5 weeks old by the way.

(I feel like I'm haunting this topic at the moment!)

Is there blood in your milk when you express? If so, that could be the charmingly named Rusty Pipe Syndrome (click through to the US page when it asks you) which is quite harmless and will pass.

good idea, i didn't think of expressing, I'll have a go

no blood in the expressed milk. hmm

Is he cutting a tooth. DS produced quite a surprisingly large blood smear after breastfeeding once when he was teething?

can they start teething at 3.5 weeks? I'll have a look in his mouth when he wakes up. I suppose that would also account for him having a disturbed night

Can be born with teeth yes, I was.

no teeth yet. We took him to see out of hours GP as his poos have changed colour a bit and we wanted to make sure nothing was wrong. GP said it's quite common for babies to get a small burst blood vessel in their mouth which heals very quickly. He said it was probably that and examined him and said he was very healthy :)