Can I go out of the country for vacation two weeks before surgery?

I'm having surgery on both upper and lower jaw to even out my teeth and for my gum not to show a lot when I smile in 2 1/2 weeks ( June 19th. ) However my cousin invited me to go with her to Mexico and she's only going for two weeks so I would be back for my pre-operation appointment. If I do go. But are patients allowed to leave the country before going into surgery or no? Thanks.

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