O positive (O+) blood can safely receive red blood cells only from O positive (O+) and O negative (O−) donors.

Quick Scoop: O+ Compatibility

  • You can receive :
    • O positive (O+)
    • O negative (O−)
  • You cannot receive : A, B, or AB blood types, whether positive or negative, because your immune system would react to their A or B antigens.

In simple terms, if you are O+, your donor’s blood type must also be type O, and the Rh factor can be either positive or negative.