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According to the National Marrow Donor Program (NMDP), doctors request donors between 18 and 35 nearly 80% of the time, leading to the question: why can't you donate bone marrow after 40? The eligibility rules are driven by medical evidence to maximize patient success.
Medical studies consistently show that stem cells from younger donors provide a greater chance of transplant success and long-term survival for patients. This key medical fact is the primary reason that donor registries must place a maximum age on their volunteer pool. So, at what age can you no longer donate bone marrow to an unrelated recipient? The answer is typically 61.
According to the National Marrow Donor Program (NMDP), bone marrow donation guidelines for unrelated donors prioritize younger individuals for better patient outcomes. So, **can I donate bone marrow if I'm over 40**? While you cannot join the registry for unrelated donation after age 40, there are critical nuances and other options to consider.
