If the blood does not pass the test after donation, you will usually be notified within 3-5 days. China advocates citizens to donate blood for free, and the blood station staff will conduct a thorough examination of the donor’s blood after donation. The main cases of unqualified blood include high transaminase content in the blood, such as glutamic oxalacetic transaminase or glutamic alanine transaminase content exceeds the standard, suggesting that the patient’s liver function is abnormal, and his or her blood is also unqualified. The presence of abnormal antibodies in the blood, such as syphilis virus antibodies, HIV antibodies, hepatitis C virus antibodies or hepatitis B pathogen carriers, the blood of the above donors is unqualified blood, at which time the blood station will send a message to the donor within 3-5 days according to the information left by the donor. If you receive a message alerting you that your blood is not qualified, it is recommended that you go to the hospital as soon as possible to have your blood drawn for careful examination and take early treatment measures. The public is encouraged to actively donate blood, which not only stimulates their own hematopoietic system, but also provides insight into their own blood status and allows for timely treatment if abnormalities are found.