Bumped into someone's head after getting lip fillers: Do you think the fillers will move around?

It is unlikely this will negatively impact your results. I would wait a full 2 weeks before judging the results. If it is after the two week wait, you can have the filler reversed with hyaluronidase.
I hope this helps!

Thank you for your question. It is unlikely that your lips moved around, however it is difficult to say certainly without an in-person examination. Please feel free to consult with your board certified facial plastic surgeon.
Best wishes,

Hi and thank you for your question! Once filler is injected and a few hours is passed, it is very unlikely to move even after bumping into someone. Swelling is quite common following filler injection and it might get worse after the accident, but all swelling should fully resolved within two weeks and at that time if you have any concerns, you should do a follow up with your injector. I hope it helps and good luck!