What does “Rh blood type positive” mean?
Disease description:
I went for a blood draw today, and they told me I have Rh-positive blood type. What does “Rh-positive blood type” mean?
Doctor's answer (1)
Dr. Zhang Heyang
Rh-positive is one of the two main types within the Rh blood group system, which is a classification system for blood types. Under normal circumstances, the two primary blood group systems are the ABO and Rh systems. The Rh system is further divided into Rh-positive and Rh-negative. Approximately 99.7% of people are Rh-positive, while only a small minority are Rh-negative. For example, during blood typing, if the test detects the D antigen, the result is classified as Rh-positive; conversely, if the D antigen is absent, the result is Rh-negative.
