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    The implant is about the size of a thin matchstick and people have it inserted under the skin of the inner side of the upper arm. It can easily be felt, but it is not very visible, except to someone who is looking for it. There will be a tiny mark at the point of insertion, but this isn’t very visible providing the implant has been inserted by a trained healthcare provider.

PP-UN-WHC-GB-0293 July 2025