Blood therapy, also known as blood transfusion, is a medical procedure that involves transferring blood or blood components from one person to another. This therapy is often used to treat patients who have lost blood due to surgery, injury, or medical conditions like anemia. It helps restore the body's ability to carry oxygen and maintain proper blood volume. There are different types of blood therapy, including whole blood transfusions and the use of specific components like red blood cells, plasma, or platelets. Each type serves a unique purpose, depending on the patient's needs and the underlying health issue being addressed.