Bloodless surgery, also known as non-invasive surgery or minimal blood loss surgery, is a procedure that aims to reduce or eliminate the need for blood transfusions during surgery. Synonyms for this type of surgery include anemia-friendly surgery, cell saver surgery, hemostatic surgery, and blood sparing surgery. Anemia-friendly surgery focuses on patients with low levels of hemoglobin, reducing the amount of blood loss during the surgical procedure. Cell saver surgery collects and reinfuses the patient's own blood during surgery, reducing the need for transfusions. Hemostatic surgery utilizes advanced techniques and equipment to control bleeding during surgery, while blood sparing surgery aims to conserve blood supply by decreasing blood loss and replacing lost blood. Each of these terms describes a similar type of surgery that focuses on reducing blood loss and the need for blood transfusions.