the obstruction. In addition, arterial occlusion can result in serious irreversible vascular complications, such as skin necrosis and vision loss. 3 According to a recent literature review, 4 most filler associated blindness cases are caused by HA fillers (70%). In particular, when HA filler is injected into anatomical locations such as the nose, glabella, and forehead, the procedure should be performed with caution.In Korea, sales of injectable fillers to nonprofessionals are prohibited; however, the patient was a paramedic employee in a local primary hospital, which made the filler accessible to her. In other cases, injectable fillers have been easily purchased online worldwide. There are also products called the Do-It-Yourself kits for dermal fillers and patients are able to download unverified injection maps from the internet and perform the injections themselves by watching video tutorials. 5 Individuals should be aware of these unsupervised medical practices that can cause irreversible sequelae. Fortunately, our patient did not show any serious irreversible complications because of immediate proper management within 24 hours of the injection. This emphasizes that immediate proper medical intervention is necessary at the onset of symptom development.This case has an educational impact on the importance of filler-associated guidance and supervision, with the pathologic evidence of HA filler obstructing the vasculature. Considering the possible complications and risks they pose, it is necessary to set strict regulations on filler administration.