Injection Site Dermal Filler Risks
Cysts, bumps, irregularities, nodules and granulomas are all potential injection site dermal filler complications. If the filler is injected too close to the surface of the skin, it may be visible as a bluish lump. In this case, the lump may be removed by making a small cut in the skin and squeezing the filler out. Or, it may be dissolved using hyaluronidase (an enzyme that breaks down HA fillers).
More long lasting, uncomfortable and disfiguring lumps in the deeper dermal layers can be caused by incorrect injection technique or volume. Or, they may develop due to an inflammatory response to the dermal filler itself. If these lumps do not resolve or respond to less invasive therapies like steroids, they may have to be surgically removed.