Hyaluronic Acid Filler
Localized redness and pain: This is a common side effect that typically subsides within 1 to 2 days after injection.
Bruising: Blood vessels may be damaged during the injection process, causing local bruising that usually resolves spontaneously within 1 to 2 weeks.
Nodules: Uneven injection of hyaluronic acid can lead to nodule formation, which can be treated with massage or hyaluronidase.
Vascular embolism: This is a serious complication. If hyaluronic acid is inadvertently injected into a blood vessel, it may cause local tissue necrosis, blindness, or other severe consequences, although the incidence rate is low.
Autologous Fat Grafting
Infection: Inadequate sterilization during the surgical procedure may lead to infection, characterized by localized redness, swelling, fever, and pain.
Fat liquefaction: Transplanted fat tissue may undergo liquefaction due to poor blood supply, resulting in local hardening and swelling.
Uneven absorption: This can cause asymmetry of the cheekbones, requiring additional filler for adjustment.
Other Side Effects
In addition to the aforementioned side effects, allergic reactions may occur, particularly to certain components in hyaluronic acid, manifesting as rashes or itching. Some individuals may also experience psychological discomfort after the procedure, such as dissatisfaction with the results not meeting their expectations.