Why do some people wear tefillin on both arms (not simultaneously)?

  • 2
    Maybe they are ambidextrous? Is this a common thing you saw in some community?
    – Double AA
    Commented Mar 3, 2021 at 23:15

1 Answer 1


There is a dispute about whether strength or writing is the deciding factor in determining which hand will be used to wear tefillin. Therefore, some who perform all labor with one hand and write with the other, have the practice toward the end of davening to remove the shel yad and put it on the opposite arm for a few minutes to be mekayem both shitos. For more resources: https://vaadmhk.org/tefillin-the-right-way/

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