Why are butt implants not FDA approved in Canada? Have there been many complications?

 This question is probably best answered by a Canadian physician or better yet the FDA-equivalent themselves in Canada. That being said, buttock implants are considered relatively safe and very effective in the USA. If performed by a buttock implant specialist, buttock implant are no more dangerous than fat transfer or breast implants:
In my experience and studies have also shown, risks and potential complications of buttock implants are very similar to breast implants - ~1% risk of infection, ~2% risk of wound healing complications, ~2% risk of bleeding and/or fluid collections. One main difference is while breast implants have a nearly 20% risk of hardening from excessive scar tissue formation surrounding the implant (aka capsular contracture), in my experience buttock implants have ~2% risk of this.  Also, because buttock implants are made of soft semi-solid silicone rubber and do not have a silicone shell that contains a liquid on the inside, like breast implants do, they cannot rupture or leak. They therefore are considered a permanent implant that never has to be changed at a certain interval unlike breast implants, which are generally recommended to be replaced every 10 years with a fresh pair.  Finally, one unique risk of fat transfer (aka "BBL") is the deadly consequences of a fat embolism in ~ 1:3000 patients.

Dear Amara,    I did not know that butt implants are not approved in Canada. They are definitely approved in the US. When butt implants surgery is done by an expert board certified plastic surgeon, the complication rate is very low and comparable to other surgeries as long as you follow the post operative instruction very strictly.   Not all result are the same, because,  there are not many surgeons who perform butt implants surgery in large numbers and there are different surgical  techniques and different implants.  So,  do your due diligence carefully and choose your surgeon wisely, to avoid bad result and need for corrective surgery that will double the cost and recovery time.    For this specific surgery, it might be in your best interest to travel to an expert surgeon. Check the before and after pictures in the photo gallery, to make sure that they are numerous, consistent and attractive with nice 'S curve, nice projection, round hips, low single scar in the crack and natural look.                              Best of luck,                                                    Dr Widder