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Bone marrow donation medical guidelines include an assessment of body mass index (BMI) and height to weight ratio. There is not a minimum weight requirement. However, there are maximum weight guidelines for joining the registry and for donating marrow. These guidelines have been established to help ensure your safety as a donor.

If you are called to donate, you will undergo a physical exam and will be assessed for any weight-related health issues that might impact your ability to donate.

To see the maximum weight (in pounds) for a given height (in feet and inches), please see the chart below:

Height and weight guidelines for donors identified as a possible match
HeightWeight
4'10"210
4'11"218
5'0" 224
5'1"232
5'2"240
5'3"248
5'4"256
5'5"264
5'6"272
5'7"281
5'8"289
5'9"297
5'10"306
5'11"315
6'0"325
6'1"331
6'2"341
6'3"353
6'4"361
6'5"373
6'6"380
6'7"391
6'8"399
6'9"411
6'10"419
6'11"431
7'0"440