Is having permanent lip fillers a contraindication for a bullhorn lip lift? (Photo)

I have had injected pms silicoin oil in my lips in 2006. And I don’t have any complications. But now I’m orientating on a bullhorn liplift and I spoke to one cosmetic surgeon about this. And she has already ruled out in advance that I can do a liplift. I didn't even have to come in for a consultation. It was a contraindication she said. And I wonder now, do all doctors think this way? And why is it a contraindication?