On call: Blood type and your health
Q. At my last office exam, I asked my doctor if he could tell me my blood type. I was surprised it was never checked as part of my routine lab tests. Isn't my blood type important for the doctor to know?
A. I am not surprised that your doctor did not check your blood type as part of routine testing. Blood type does not influence doctors' decisions about your preventive health or how to treat common chronic health conditions. Blood type is important to know in only two situations: blood transfusions and tissue or organ donations.