Thank you for your question! Bruises from lip fillers are more common than you might think. According to Juvéderm and Restylane package inserts, 85% of patients reported bruising after lip filler procedures. On average, most patients bruised for at least three days, but more than a quarter still had bruises a week later. It may be best to follow up with your physician injector to evaluate whether it's a bruise or an intravascular event. The five studies included in the package inserts covered over 700 patients and practitioners with fairly consistent results. Even the best injectors can’t prevent bruising in this area. Next time, it helps to address bruising beforehand: avoid NSAIDs, herbal supplements, alcohol and green tea before your appointment.