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A member asked:
Is it going to be a perfect match if i my organ donor is my twin?
4 doctors weighed in across 2 answers
Yes: Identical twins but not fraternal twins are "perfect matches" and don't need to take medicines to prevent rejection. We test twins before transplant because you can't tell by looking if twins are really identical.
Answered 6/7/2016
6.4k views
Depends on Twin Type: The tissue type would be the exactly same in identical twins--if they came from only one placenta in the mother. Fraternal twins (which could even be different sexes) have no more than a 25% chance of having the same hla type--just like any siblings.
Answered 3/11/2012
6k views
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