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What is the status of prosthetic limbs in halacha in terms of being considered part of the body?

Is it considered:

  • As if I were born with it?
  • As a living piece of flesh, but not a piece of me?
  • Something that happens to be attached to me?
  • Something else?

Is there a difference depending on what material it is made out of?

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I bet someone could write a whole book about this. – Double AA May 29 '12 at 17:14
As to whether or not a prostheitic limb requires netilat yadayim and such, there is a discussion by Rav Y.M. Stern about that in עמק הלכה אסיה (Halperin, ed., Jerusalem, Shlesinger Institute), pp. 257-275, where he discusses the halachot of mikvah immersion of women with parapeligia. He argues that the material to support the woman's body cannot be m'kabel tum'a. It would seem that the material of the prosthetic limb might, indeed, be a factor. – Shemmy May 30 '12 at 23:48
More specific (and therefore not closed) later questions: judaism.stackexchange.com/q/35963 and judaism.stackexchange.com/q/35980 – msh210 Mar 4 '14 at 16:28
@tinokshnishbah Does this still capture your question as edited? – Y ez Mar 5 '14 at 20:18
Related; – Shmuel May 15 '14 at 10:20

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