They don't change colour straight away, but after a minute or so. It is like all the blood suddenly goes away. They don't always do it.
Is is a bad latch? DD is nine months and I have had lots of problems including about five bouts of mastitis in two months.
She feeds a lot in the evenings and often during the night, but she has a terrible habit of pulling off and turning away to fall asleep, could that be the problem?