As seen in this link of the Canada Revenue Agency: Documents you need to support your medical expenses claim

Do not send any documents with your tax return. Keep them in case the Canada Revenue Agency (CRA) asks to see them later.

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Medical receipt amounts are recorded under Deductions, Medical Expenses profile and then Medical receipts.  You do not need to upload the receipts.  CRA can ask you for copies so make sure to keep all the receipts in your 2022 tax file.

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