The universal donor blood type is **O negative**. Anyone with this blood type can donate blood to a person who needs it regardless of their blood type. Blood types are characterized as positive or negative based on the presence or absence of a protein called Rh factor.

Here is your article:

Blood transfusion is a life-saving procedure that involves transferring blood from one person to another. It is used to treat various medical conditions such as severe injuries, surgeries, and illnesses. However, not all blood types are compatible with each other. Therefore, it is essential to know which blood type is the universal donor.

The universal donor blood type is O negative. Anyone with this blood type can donate blood to a person who needs it regardless of their blood type. Blood types are characterized as positive or negative based on the presence or absence of a protein called Rh factor.

Blood transfusions are classified into two categories: ABO and Rh. ABO refers to the four main blood types: A, B, AB, and O. Rh refers to the presence or absence of the Rh factor protein on red blood cells. If you have the protein, you are Rh-positive; if you don't have it, you are Rh-negative.

Blood type O negative is considered the universal donor because it does not contain any A or B antigens on its surface. Therefore, it can be safely transfused into people with any other blood type. However, people with O negative blood can only receive O negative blood.

In contrast, AB positive (AB+) and O negative (O-) are considered universal blood types. People who are AB+ are universal recipients, meaning they can safely receive a blood transfusion using any other blood type. O- individuals are universal donors, meaning their blood can be given to people of any blood type .

Here is the list of website addresses that discuss Which Blood Type Is The Universal Donor:
- https://www.verywellhealth.com/what-is-a-universal-recipient-3157299
- https://www.mayoclinic.org/tests-procedures/blood-transfusion/expert-answers/universal-blood-donor-type/faq-20058229
- https://www.redcrossblood.org/donate-blood/blood-types.html

.

Discover an extensive compilation of Which Blood Type Is The Universal Donor on our website dedicated to Comprehensive Word Definitions. Obtain thorough insights into the definition of Which Blood Type Is The Universal Donor across various domains. Learn the intricacies and variations of word usage in various settings. The universal donor blood type is **O negative**. Anyone with this blood type can donate blood to a Broaden your vocabulary and enrich your language skills. Become proficient in expressing ideas with precision using the right words. Discover the power of words and enrich your communication through our vast collection of word meanings, see you soon here at Dictionary of Words.