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 | |
| Height | Weight |
| 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 |