Panda blood is medically known as Rh-negative blood, and this blood type is relatively scarce, so there are no benefits or disadvantages as a blood type. However, clinically, there are certain disadvantages for this blood group, because Rh-negative blood is rare, so there may be a scarcity of blood. In situations where one needs a blood transfusion, such as a hemorrhage or surgery that requires a blood supply, one may not be able to get enough Rh-negative blood to replenish it and obtain effective treatment. In addition, people with Rh-negative blood are subject to more stringent conditions for blood transfusions than those with normal blood types. If the blood type of the recipient and the donor do not match during the transfusion process, a hemolytic transfusion reaction may occur. This can occur in any blood type, but Rh-negative blood groups are more restricted in their transfusion options than other blood types, which can be considered a disadvantage. If the recipient is Rh-negative, only Rh-negative blood can be transfused. If Rh-positive blood is transfused, antibodies will be produced in the recipient’s body and a hemolytic transfusion reaction may occur. However, due to the scarcity of Rh-negative blood sources, in cases of special emergency and after cross-matching with the consent of the physician, patient and family, very few cases will choose to give the patient a one-time transfusion of a full amount of Rh-positive blood to achieve their own blood supply, and because this method is particularly dangerous, it will not be used lightly. In response to the aforementioned scarcity of blood and the occurrence of hemolytic transfusion reactions, blood banks around the world have been gradually paying attention to the reserve of Rh-negative blood and filing those with such blood types so that they can contact those with the same blood type for assistance in critical moments, provided that the conditions of the blood supplier allow and they agree. In addition, patients can also go to the hospital to have their own blood drawn in advance, just in case they need it.