Lip Filler migration is when lip filler moves beyond its intended boundary and into the surrounding lip tissue.   Migration can occur at any time after the injection procedure. Migration may or may not be visibly noticeable, and may occur in differing degrees.   Lip Filler migration can be addressed with dissolving injections, if needed. If you've experienced Lip Filler migration in the past, you may be at risk for it again in the future.