Filler Migration
The unintended movement of injected dermal filler material away from the original treatment site over time.
Full Definition
Filler migration refers to the displacement of a dermal filler product from its intended anatomical location to an adjacent or distant site, often resulting in visible lumps, distortion, or asymmetry. It is most commonly reported with hyaluronic acid fillers placed in the lips and periorbital area. Contributing factors include improper injection depth, product selection, patient anatomy, and repetitive muscle movement. Editors should note the correct spelling as two separate words and avoid the erroneous hyphenated form 'filler-migration' when used as a noun phrase. The term is distinct from 'overcorrection,' which refers to excessive volume at the intended site.
Usage
Usage note: Always written as two words when used as a noun. Do not confuse with 'vascular occlusion,' which is a separate, acute complication.
In Context
- "The case report documented filler migration to the infraorbital region following repeated lip augmentation treatments." — Clinical case report
- "Patient photographs taken at the six-month review demonstrated visible filler migration along the philtrum." — Aesthetic assessment record