Nose filler in Korea is a hyaluronic acid injection that lifts a low bridge or smooths a small bump without surgery, but the nose is also the area of the face where filler carries its most serious risks. Gel that enters or compresses one of the small arteries along the nose can block blood flow, a complication called vascular occlusion. Medical case reports describe skin necrosis and, rarely, permanent vision loss, because these vessels connect with the artery that supplies the eye. Hyaluronidase dissolves the gel and is the first response. Below: why the risk is higher, what one study reported, and who should consider surgery.
Guide
Why the nose carries the highest filler risk
The skin over the bridge and tip is fed by small arteries that run close to where gel is placed, and some link back toward the eye through the angular and dorsal nasal arteries. Gel pushed into one of these vessels can travel backward and reach the artery of the retina. That is how a cosmetic injection can cause sudden blindness, which is often permanent.
Skin necrosis is the more frequent serious outcome: a patch of skin, often at the tip or side of the nose, loses its blood supply, turns pale or dusky and can break down without treatment. Tip skin is thick and tight, so gel there presses on vessels with little room to spread. Warning signs to act on at once:
- Pain during or after the injection that is sharper than the needle itself
- A white or pale patch, or a blue-gray lace pattern spreading over the skin
- Blurred vision, eye pain or loss of sight in either eye, which is an emergency
- Dark, blistered or crusting skin appearing over the following days
Guide
What a 400-patient technique study reported
In a 2024 retrospective study in Aesthetic Plastic Surgery, Silikovich and Kroumpouzos reviewed 400 people treated with a four-point method that places small boluses deep in the midline, on bone or cartilage. Silikovich and Kroumpouzos reported a mean volume of 0.65 ml, no vascular complications, 93% of patients rating the outcome at least satisfactory and a median effect of 11 months.
Two caveats matter. The study was retrospective, from one practice whose lead author holds the technique's patent. And no occlusion in 400 people does not mean zero risk, since the event is rare enough that far larger groups are needed to measure it. What carries over is the approach: tiny amounts, deep placement, slow injection along the center line.
Guide
Gel, cartilage or implant: who should consider surgery
Filler only adds volume. It cannot shorten or narrow a nose, remove a large hump, straighten a nose bent by injury or open a blocked airway. People who want those changes, who need large repeated volumes, or who have an old implant or heavy scarring are usually better served by a rhinoplasty consultation first.
For anyone weighing surgery, a 2022 meta-analysis in the Annals of Palliative Medicine by Wu and colleagues pooled seven studies with 1,233 patients and found augmentation with the patient's own cartilage was linked to higher satisfaction, fewer complications and fewer revision operations than a silicone implant. The authors flagged heterogeneity between studies, so the result points a direction rather than settling the question.
| Point | Hyaluronic acid gel | Own cartilage graft | Silicone implant |
|---|---|---|---|
| What it changes | Adds height, smooths small bumps | Builds height and tip support | Raises the bridge |
| Reversible | Yes, with hyaluronidase | No | Removable only by surgery |
| Recovery | Swelling and bruising for days | Weeks of swelling | Weeks of swelling |
| How long it lasts | Months, then fades | Long term | Long term, revision possible |
| Main serious risk | Occlusion, necrosis, vision loss | Graft warping or resorption | Infection, shifting, extrusion |
Guide
Hyaluronidase: what should happen in the first minutes
If occlusion is suspected, the injector stops and floods the area with hyaluronidase, repeating doses until skin color and pain improve. Any change in vision calls for emergency eye care straight away. Speed shapes the outcome, so the enzyme should already be in the treatment room.
Before booking, ask whether hyaluronidase is kept on site, who decides to use it, and which hospital the clinic would send you to if eye symptoms appear. Needle or blunt cannula, neither tool removes the risk; technique and preparation do more.
Guide
Planning a nose appointment from Hongdae
Warning signs tend to show during the injection or in the hours after, so schedule it early in a Seoul stay and remain within reach for two days. Hongdae's place on the airport rail line makes it easy to arrive and recover nearby, but avoid the last afternoon before a flight.
For the first days, skip alcohol, saunas and pressure on the bridge, including heavy glasses. If anything looks pale, dark or painful, go back the same day rather than waiting.
Evidence
Research behind this page
- A systematic review and meta-analysis of the efficacy and complication rates of augmentation rhinoplasty with autologous cartilage and silicone prosthesisAnnals of Palliative Medicine · 2022 · doi:10.21037/apm-22-111
A meta-analysis of seven studies with 1,233 rhinoplasty patients in which autologous cartilage was associated with higher satisfaction and lower complication and revision rates than silicone implants, with noted heterogeneity.
- Nonsurgical Rhinoplasty: Results from a Retrospective Study of Rino-4-Puntos Technique with Hyaluronic AcidAesthetic Plastic Surgery · 2024 · doi:10.1007/s00266-024-04263-z
A retrospective series of 400 patients treated with small, deep midline hyaluronic acid boluses that reported no vascular complications, 93% satisfaction and a median effect of 11 months.
FAQ
Questions about Fillers in Hongdae
Can a nose injection really cause blindness?
Yes, vision loss after nose filler is rare but documented in the medical literature, and it is often permanent. It happens when gel enters a nasal artery and travels backward into vessels that supply the eye. Sudden blurred vision, eye pain or a dark area in sight during or after injection needs emergency care at once. This is the main reason to choose an experienced injector and confirm hyaluronidase is on site.
Is korea nose filler done with a needle or a cannula?
Both are used, depending on the doctor's training and the point being treated. A blunt cannula may push vessels aside rather than pierce them, while a fine needle places tiny amounts directly on bone or cartilage. Neither tool removes the risk of occlusion, so ask which one will be used and how deep the gel will sit.
Can gel be added over an old nose implant?
Many doctors are cautious about injecting over an implant, and some decline altogether. Scar tissue from earlier surgery can move vessels and thin the skin, raising the chance of pressure on the blood supply and of infection around the implant. A surgeon's review is the usual first step, and any gel plan should use small volumes.
How quickly does hyaluronidase work on a blocked vessel?
Hyaluronidase starts breaking down hyaluronic acid soon after injection, which is why it is the first response when blood flow is affected. Doctors usually inject it generously across the area and repeat doses while watching skin color and pain. It does not work on other filler types, and it helps most when it is already in the room.
Should a nose filler Seoul plan include a follow-up visit?
Yes, a check within the first days is worth building into the trip. Swelling, early skin changes and asymmetry are easiest to assess in person, and any late sign of reduced blood flow needs the team that injected the gel. Ask how to reach the doctor that evening. Results vary from person to person.