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.

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 …

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.

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.

Mar 31, 2024 · Blood typing is done so you can safely donate your blood or receive a blood transfusion. It is also done to see if you have a substance called Rh factor on the surface of …

Dec 20, 2025 · Blood types A, B, AB, and O affect transfusion compatibility. Blood type O-negative is the universal donor, while AB-positive is the universal recipient.

Dec 7, 2025 · The ABO system has four major blood types: A, B, AB, and O. Blood types are further categorized by the presence (positive or +) or absence (negative or -) of the Rh (D) …

Apr 5, 2022 · Blood typing is a fast and easy way to ensure that you receive the right kind of blood during surgery or after an injury. If you’re given incompatible blood, it can lead to blood …

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 …

Nov 22, 2025 · blood typing, classification of blood in terms of distinctive inherited characteristics that are associated with the antigens located on the surface of red blood cells (erythrocytes). …