Can I donate blood if my white blood cell count is too high?

It is generally not recommended to donate blood when white blood cell (WBC) count is elevated. The primary functions of white blood cells include engulfing foreign substances such as bacteria and viruses, and producing antibodies to fight against invading pathogens. An elevated WBC count may indicate the presence of bacterial infection, viral infection, blood disorders, or tissue damage, all of which may affect the quality of blood.

Specifically, during bacterial or viral infections, white blood cell counts often rise significantly as the body combats the pathogens. If blood donation occurs at this time, there is a risk of transferring pathogens or abnormal white blood cells to the recipient, potentially endangering their health. If the body is in a compromised health condition, donating blood may interfere with immune function and recovery processes. The loss of blood during donation requires additional energy and resources from the body to replenish, thereby increasing the burden on overall health.

If your white blood cell count is above the normal range, it is best to consult a physician first to understand your health status. Consider donating blood only when a doctor deems it appropriate. This ensures both your own well-being and the safety of the blood supply for others.