Different Blood Types Explained
Facts About Different Blood Types
Every year in the United States, 4.5 million lives are saved by blood transfusions from donors just like you. But do you know your blood type? Do you know where blood types come from?
Learn more about how your blood type is determined; get fascinating facts about each blood type; and get answers and insights to some of the most frequently asked questions about blood types from our medical experts.
No matter what blood type you have – A positive, A negative, B positive, B negative, AB positive, AB negative, O positive, O negative, or a rare and uncommon blood type – we guarantee you’re someone’s type!
A Blood Type
B Blood Type
AB Blood Type
O Blood Type
Rare and Uncommon Blood Types
Donate in Wisconsin
Every day, patients in your community need blood transfusions to survive and thrive. They rely on the generosity of donors like you, who help ensure a safe, healthy blood supply. Make an appointment to donate blood today.
Explore donation opportunities in Illinois, Indiana, Michigan, and Ohio.
Blood Donation Locations
Host A Blood Drive
Types of Donations
Ro Blood Type
Importance of Diverse Donors
Plasma is a liquid part of blood that carries proteins, hormones and other nutrients throughout the body. It is the biggest blood component, making up 55% of your total blood volume. A healthy supply of plasma in the body:
- Protects from infection
- Helps maintain a healthy blood pressure
- Promotes clotting when you get a cut