Blood Types Explained - A, B, AB and O | Red Cross Blood Services
Not all blood is alike. Learn about blood typing and the rarest and most common types of blood and how they can impact your blood donation.
Blood Types: What They Are and Mean for Your Health
There are four main blood types: A, B, AB and O. Blood bank specialists determine your blood type based on whether you have antigen A or B on your red blood cells.
Blood Types - A, B, AB, O, Rh - Science Notes and Projects
Nov 28, 2023 · Blood types are a classification of blood based on the presence or absence of specific antigens on the surface of red blood cells. These antigens determine the body’s …
Blood type - Wikipedia
A blood type (also known as a blood group) is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells …
Blood Types: Main Groups, Most Common, and Rarest
Nov 23, 2025 · There are eight main blood types, defined by the ABO system and the Rh factor. Type O-negative blood is a universal donor, and AB positive blood is a universal recipient. …
Different Blood Types Explained: A, B, AB, and O - Health
Mar 7, 2025 · Your blood type—A, B, AB, or O—is determined by the ABO system and the Rh factor, both of which depend on specific antigens on your red blood cells.
The 8 Blood Types Explained: Importance, Rarity, & Donations
Dec 26, 2024 · Blood types are important because they affect blood transfusions, pregnancy outcomes, and blood donation. This article outlines the different blood types and their practical …
Blood Types Explained: Health, Compatibility, and Rare Types - WebMD
Feb 19, 2025 · Learn what determines your blood type and why it's important. Understand blood type compatibility, donation guidelines, and the need for safe transfusions.
Blood Types - What Determines Your Type? | Carter BloodCare
Sep 9, 2025 · What determines someone’s blood type? Our different blood types are determined by the presence or absence of certain antigens (unique substances) on the surface of our red …
Blood Types: What They Are and Why They Matter - MedicineNet
Nov 18, 2025 · Just like your skin tone and eye color, your blood type is something you’re born with. It runs in your family and is determined by your parents’ blood types.