Why Does Juvederm Leave a Bump After the Injections?

When dermal fillers are injected the material expands the surrounding tissue. This is normal, and may cause some raising of the skin surface.
Over a few days this subsides to a flatter surface, while maintaining the cosmetic improvements for the life of the filler. The duration of the filling effect will vary with the type, location, and volume of filler used.

Some patients develop a small skin bump right after the injection because that's how their body responds to a skin injury (from the needle) and goes away in a day and is unrelated to the filler.  Other times, the bump can occur as a result of too much product in that area.  Gentle massage over time will make this better.  Juvederm is a very cohesive filler and can 'clump' sometimes.  Ask for a less cohesive filler next time and let your provider know about the bump so they can alter their technique to avoid too much product in an area. 

This little bump is usually caused by the injection process, due to the needle piercing the skin. It goes away in the day or two after your treatment. A gentler injection technique can be performed to reduce the size of this bump.