I look Aleve before my Breast Augmentation surgery. Will this cause any problems?

Thank you for your question.  No need to freak out but you should definitely let your surgeon know.  He may or may not postpone your surgery.  I am sure you were given a list of medications and other things to avoid for at least two weeks before surgery and it is your responsibility to follow your surgeons instructions if you want to avoid complications and get the best possible outcome.  If you were one of my patients and I believed that you really only took one Aleve 48 hours before surgery then I would probably go ahead with the surgery but warn you that you may end up more swollen with more pain and possibly bruised after surgery and that I may even decide to put in drains which don't usually do on breast augmentations.  The reason for the extra swelling and pain is that it may require more time and use of cautery to get your pocket completely dry before I put in the implants.  Going forward be sure you follow your surgeons instructions completely and avoid any more "accidents".

Well, you should NOT have taken it as it can "thin the blood" slightly. Most studies show this effect is only potentially meaningful for 48-72 hours with this medication. The more you took, the worse it is, Yes, you should tell your surgeon now so they can advise you of their recommendation. I typically will still do the surgery if the patient wishes to proceed and accepts a slightly higher risk of hematoma though it still would be uncommon.

There are no reasons that I can think of why it would matter. There was some buzz for a long time that medications like ibuprofen or other non steroidal anti-inflammatory medications could increase bleeding risk. We have since learned that is of no significance. It should not matter that you have taken Aleve.