Hmmm.... ok I answered NO simply because my organs are probably in quite bad shape with my cholesterol levels off the chart

so it would actually be harming others to use them...
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Anyway, a lot of people seem to have religious reasons for not donating their organs. I still don't quite understand the validity of these. Does anyone here have any insight to offer into the religious aspects of organ donation?
Anyway, regarding religious reasons (Islamically) the following rulling applies:
1) It is permitted to transplant or graft an organ from one place of a person’s body to another, so long as one is careful to ascertain that the benefits of this operation outweigh any harm that may result from it, and on the condition that this is done to replace something that has been lost, or to restore its appearance or regular function, or to correct some fault or disfigurement which is causing physical or psychological distress.
2) It is permitted to transplant an organ from one person’s body to another, if it is an organ that can regenerate itself, such as skin and blood, provided that the donor is mature and fully understands what he is doing, and that all the other relevant shariah (Islamic Law) conditions are met.
3) It is permitted to use part of an organ that has been removed from the body because of illness to benefit another person, such as using the cornea of an eye removed because of illness.
4) It is unlawful (prohibited) to transplant or use an organ on which life depends, such as taking a heart from a living person to transplant into another person.
5) It is unlawful (forbidden) to take an organ from a living person when doing so could impair an essential and vital function in his body, even though his life itself may not be under threat, such as removing one kidney or the corneas of both eyes etc...
6) It is permitted to transplant an organ from a dead person to a living person when his life depends on receiving that organ, or when vital functions of his body are otherwise impaired, on the condition that permission is given either by the person before his death or by his heirs, or by the leader of the Muslims in cases where the dead person’s identity is unknown or he has no heirs.
7) Care should be taken to ensure that in all of the above situations where transplantation is permitted, no buying or selling of organs is involved. It is not permitted to trade in human organs under any circumstance. However, the question of whether the beneficiary may spend money to obtain an organ he needs, or to show his appreciation, is a matter which is still under the research of the scholars.
8) Anything other than the scenarios described above is still subject to scholarly debate, and requires further detailed research in the light of medical research and Islamic rulings...