Why does filler migrate under the eyes and can it be fixed?
⚠️ Seek urgent care for these symptoms
Sudden vision changes, severe pain around the eye, skin that turns white or blue-gray near the injection site, or rapidly worsening swelling after a filler procedure are warning signs of a serious vascular complication. Contact your injector or go to an emergency room immediately. These are rare but can be sight-threatening if not treated right away.
Short answer
Filler placed in the tear trough area can shift from its original position over time due to factors like injection technique, the type of filler used, and the delicate anatomy of the under-eye region. Hyaluronic acid filler migration can usually be dissolved with an enzyme called hyaluronidase, while non-dissolvable fillers may require surgery to remove.
Why migration happens
The under-eye (tear trough) area is anatomically delicate, with very thin skin and multiple tissue layers in close proximity. When filler is injected, it can move away from its intended location over months or years. A large systematic review found that migration was reported in about 7.7% of delayed complication cases in the tear trough area, with the average delayed complication appearing roughly 16.8 months after treatment [1]. Contributing factors include the type of filler used, the depth and technique of injection, and physical forces like gravity, muscle movement, and even pressure from cannulas used in later procedures [2]. The thin subcutaneous space in this region means there is little tissue to "hold" filler in place, which can lead to unintended spreading [6].
What the research shows about treatment
The good news is that the most commonly used filler in this area, hyaluronic acid (HA), is dissolvable. Injecting hyaluronidase (an enzyme) is generally effective at reducing or eliminating migrated HA filler in the periorbital area [6] [7]. For late-onset swelling or puffiness related to HA migration, treatment may also include corticosteroids, and in some cases follow-up procedures like lower blepharoplasty (eyelid surgery) or radiofrequency microneedling to improve the appearance afterward [5].
However, not all fillers are dissolvable. Non-biodegradable fillers such as polyacrylamide hydrogel can persist for years and may not respond to hyaluronidase at all. In one reported case, a patient had persistent swelling that was eventually traced to a non-dissolvable filler placed years earlier, and surgical removal was the only effective solution [2]. Semi-permanent fillers like PMMA and PLLA were also more likely to cause lumps and nodules compared to HA [1].
What this means for you
If you notice new puffiness, lumps, or discoloration under your eyes after filler treatment, it is important to let your injector know promptly. Providing a complete history of all filler treatments you have ever had, including the product type and when it was done, helps your provider choose the right treatment approach [2]. Ultrasound imaging can also be a useful tool to identify exactly where filler has traveled and guide treatment planning [5]. Most cases can be managed non-surgically if caught early and if a dissolvable filler was used [6] [7].
What to ask your surgeon or injector
Before treatment, consider asking: Which filler product will be used, and is it dissolvable with hyaluronidase? What injection technique and depth will be used to minimize migration risk? What are the signs of migration I should watch for, and how soon should I contact you if I notice them? If I have had previous filler from another provider, does that change my risk or my treatment options? These questions can help you make an informed decision and set clear expectations [1] [2] [7].