Anything you can tell me about rh negative blood type?

Not much to know: This will not affect your life in a meaningful way unless you become the mother of an unborn child who has inherited rh positivity from the child's father. You'll be given an injection to prevent yourself from becoming sensitized, which can endanger the next baby. Basically this is what you need to know. There's some internet hokum about blood types -- take your questions to your physician.